CBSE X Physics Electricity
how can we explain the difference between the resistivity and the resistance of the conductor?
Asked by
25th February 2008
7:02 PM
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CBSE X Physics Electricity
Actully...i want to know that Why resistance is actually needed???
Asked by jazlene
12th March 2008
5:52 PM
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CBSE X Chemistry
is power directly proportional to the resistence or inversely proportional to resistence?
Asked by
17th March 2008
3:05 PM
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CBSE X Physics Electricity
Find the resistance of a hollow cylindrical pipe of length 1m whose inner and outer radii are 10cm and 20 cm respectively. Assume that the cylindrical pipe is made of a material of resistivity 2 x 10-8ohm m.
Asked by narasimhasarma10
14th June 2015
11:19 AM
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CBSE X Physics Electricity
@ wires of resistence a & b of equal mass and same material are taken the diameter of wira a is half of diameter b if the resistence of wire a is24 ohms find the resistence of wire b
Asked by Porwal_kumudini
16th July 2015
5:36 PM
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CBSE X Physics Electricity
sir can you explain me this question
A piece of resistance wire has a resistance 16 ohm.Its diameter is doubled.what will be the new" R"
A piece of resistance wire has a resistance 16 ohm.Its diameter is doubled.what will be the new" R"
Asked by seeni2005
31st May 2016
12:20 PM
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CBSE X Physics Electricity
When a potential difference of 2v is applied across a end of a wire of 5m length, a current of 1A is found to flow it. Calculate
1. resistance per unit length
2. resistance of 2m unit length
3. resistance across ends of the wire if is doubled on itself.
Asked by Aryan
16th June 2016
2:28 PM
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CBSE XII Science Physics Current Electricity
Please solve the following:
Asked by manasd
19th June 2016
6:55 PM
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CBSE XII Science Physics Current Electricity
Please provide stepwise soln for this.
Asked by ayushi
3rd July 2016
8:01 PM
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JEE Plances ALL Class Physics Current Electricity
If the resistance doubled it self what happens to new resistance? Sir i want detailed explanation
Asked by venkat
10th October 2017
1:29 PM
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JEE Plances JEE (Main) Physics Current Electricity
Sir resistance doubled it self that line iam not understood iam not satisfy about your solution sir please explain it in proper way
Asked by venkat
10th October 2017
7:58 PM
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JEE Plances ALL Class Physics Current Electricity
Which solution is correct sir?
Asked by venkat
6th November 2017
3:38 PM
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CBSE VII Science Electric Current and its Effects
If the length of resistor is made double by keeping its area constant then what would be new resistance[where R is old resistance].
Asked by rkadpkdk
13th November 2017
8:15 PM
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ICSE IX Physics Current Electricity
Why are metals cood conductors of electricity?Explain in terms of resistance.
Asked by dr_pradip27121972
17th November 2017
9:08 PM
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CBSE X Physics Electricity
Q1WHAT IS NEED OF RESISTANCE IN CIRCUIT
Q2 WHY THE HEAT IS GENRATED WHEN CURRENT IS FLOW
Q3-DERIVE THE FORMULA OF CALCULATING TOATAL RESISTANCE IN PARALLELAND SERIES
Q4-WHY THE CURRENT IS NOT STABLE BUT VOLTAGE IS STABLE
Asked by amolshukal.2001
20th November 2017
9:15 PM
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ICSE X Physics Electrical Power and Household Circuits
How can an electric heater designed for 220 V be adopted for 110V without changing length of the coil and without change in consumed power
Plz answeer in simple language
Asked by lovemaan5500
1st December 2017
4:06 PM
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CBSE X Physics Electricity
Actually this is off topic provided by me............but i want to know the proper difference to resistance and resistivity. .......please give a detailes and appropriate answer
Asked by Madhulika
1st December 2017
5:11 PM
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ICSE X Physics
How external resistor R is connected in parallel to the electrodes of the cell
Asked by lovemaan5500
4th January 2018
7:19 PM
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ICSE X Physics
Explain briefly why the filament of an electric bulb is coiled.
Asked by bdroy_2014
1st February 2018
7:40 PM
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CBSE X Physics Electricity
can you give a detailed explanation on formulae r=p l/a i need the answer quickly before 02:00
Asked by Anirudh
4th February 2018
11:11 AM
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ICSE X Physics
write an expression connecting the resistance of a wire and specific resistance of its material . state the meaning of symbol used.
Asked by Khantahseen7866
18th February 2018
10:05 PM
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CBSE X Physics
Which has higher resistanc a 50W lamp bulb or a 25W lamp bulb and how many times ?
Asked by gpnkumar0
28th February 2018
10:21 PM
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CBSE X Physics
Out of 60 W and 40 W lamps, which one has higher resistance when in use
Asked by gpnkumar0
28th February 2018
10:26 PM
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JEE Plances JEE (Main) Physics
Find the value of R
Asked by venkat
28th February 2018
11:45 PM
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JEE Plances JEE (Main) Physics
Find the value of x/5 from fig
Asked by venkat
1st March 2018
12:04 AM
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ICSE X Physics
Give reasons for using Copper in makin connectiong wires Tungsten in making filament of a bulb
Asked by lovemaan5500
13th March 2018
6:48 AM
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ICSE X Physics
A wire of 9ohm having a lengh of 30 cm is tripled on itself What is new resistance
Asked by lovemaan5500
13th March 2018
7:25 AM
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CBSE X Science
resistance of a metal wire of length 1meter is 26ohm at 20 degree celsius Diameter is 0.3mm What will be the resistivity .?
Asked by sunilviswari7
13th March 2018
10:44 PM
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CBSE X Science
Q .S student veryfing Ohm,s law computed the value of resistnce of a resistor for each set of onservation . However, the values of the resistance were slightly different from the actual value . Is his expt. wrong? Justify(2marks)
Asked by sucharitasahoo1
15th March 2018
3:08 AM
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CBSE X Science
Q . What is likely to happen and it would effect the value of resistance passing the current for a longer time ?
Asked by sucharitasahoo1
15th March 2018
3:16 AM
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ICSE X Physics
A 10 ohm thick wire is stretched so that its lengh becomes 3 times Calculate resistance oof new wire
Asked by lovemaan5500
15th March 2018
7:17 AM
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ICSE VIII Maths
Electric current flowing through a circuit is inversely proportional to resistance.When the resistance is 2 ohms,current is 3 amperes.Find the following:- (a)The resistance when the current flow is 0.5,1.2 and 2 amperes respcctively. (b)The current flow in a circuit when the resistance is 1.2,2.4 and 30 ohms respectively
Asked by nathsantanukumar
9th May 2018
6:02 PM
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CBSE X Physics Electricity
what happens to the resistance of a conductor when (a) length is doubled (b) area is doubled (c) length doubled and area is halved (d) radius is doubled (e) diameteris doubled
Asked by vamsi14102003
22nd May 2018
10:58 AM
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CBSE X Physics
Please answer ques 9 given on the photo.
Asked by riyamaths
31st May 2018
8:18 PM
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CBSE X Physics Electricity
State which has a higher resistance .A 50 Watt or a 25 Watt lamp .Also find the ratio of their resistances.
Asked by riyamaths
1st June 2018
9:22 AM
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ICSE X Physics
Power of electric heater is1200W when connected to240V supply. If the resistivity and area of cross section of wire is 10 to the power minus 5 ohm meter and 0.4mm square . If the radius of one turn is 7 mm . Find the number of turn in present coip
Asked by Pv9018590
26th June 2018
4:30 PM
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CBSE X Physics
Area of cross section of a conductor is increased two times if its resistance is 20 ohm. Find the new resistance.
Asked by agraharianiruddha
28th June 2018
4:54 PM
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JEE Plances JEE (Main) Physics
Question 17
Asked by tiwarishubham635
15th July 2018
12:59 PM
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JEE Plances JEE (Main) Physics
A carbon and an aluminium wire are connected in series. If the combination has resistance of 30 ohms at 0°c what is the resistance of carbon and aluminium wire at 0°c so that the resistance of the combination does not change with temperature ( alpha for carbon = -0.5×10^-3℃^-1 and alpha for aluminium = 4+×10^-3℃^-1
Asked by Jalajkhede11
24th July 2018
10:04 AM
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CBSE X Physics
A 240 V ac mains circuit to which a number of appliances are connected & switched on. 240 ac-Fan(1.2KW)-Refrigerator(200 watt)-two bulbs(60w each,parallely) 1. Calculate the power supplied to the circuit. 2.calculate a) The current in the refrigerator. b) The energy used by the fan in 3 hours c)The resistance of filament of one bulb.
Asked by agraharianiruddha
26th July 2018
7:15 PM
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CBSE XII Science Physics
A coil is needed to operate an arc lamp of 150 V, 50 Hz. The lamp of resistance of 5 ohms when running at 10A. Find inductance of the choke coil, if the same arc lamp is to be operated on 160 V, DC. What is the additional resistance required? Compare the power losses in each case.
Asked by lekhakarthikeyan
29th July 2018
4:16 PM
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CBSE XI Science Physics
A galvanometer coil of resistance 50 ohm shows full deflection at 10 micro ampere.Resistance to be added,for the galvanometer to work as an ammeter of range 10 mega ampere is
Asked by aiswaryapbindhu3
8th August 2018
11:35 PM
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JEE Plances JEE (Main) Physics
Ques 5 It is multiple answer ques with more than one options correct
Asked by rbhatt16
23rd August 2018
7:53 AM
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NEET1 NEET1 Physics
If a copper wire is stretched to make it a cross-sectional radius 0.1% thinner than what is the percentage increase the resistance
Asked by 2238750243078948
31st August 2018
6:02 PM
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ICSE X Physics
Q1:In an experiment of veificaion of Ohm's Law,following observations are obtained. Potential Difference V (in volt)=0.5,1.0,1.5,2.0,2.5 Current I(in ampere)=0.2,0.4,0.6,0.8,1.0 Q1a:Draw a V-I graph. Q1b:The potential Difference V when the current I is 0.5A Q1c:The current I when the potential difference V is 0.75V. Q1d:The resistance in circuit. Q2:Two wires of the same material and same length have radii 1mm and 2mm respectively.Compare:a.Their resistances and b.Their specific resistances. Q3:A wire of resistance 3 ohm and length 10 cm is stretched to length 30 cm.Assuming that it has a uniform cross section,what will be its new resistance? Q4:A wire of resistance 9 ohm having length 30 cm is tripled on itself.What is its new resistance?
Asked by kaursukhjindersukh
4th September 2018
3:45 PM
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ICSE X Physics
when radius of wire is doubled what will be the ratio between old and new resistance
Asked by bharadwajlucky26
14th September 2018
4:05 PM
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ICSE X Physics
Derive the ratio between original and new resistance when a wire is tripled on itself?
Asked by bharadwajlucky26
14th September 2018
4:37 PM
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ICSE X Physics
What will be the resistance of a 6m long wire but with4times the area of cross section?
Asked by bharadwajlucky26
14th September 2018
4:39 PM
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JEE Plances JEE (Main) Physics
A carbon and an aluminium wire are connected in series. If the combination has resistance of 30 ohm at 0degree Celsius. what is the resistance of carbon and aluminium wire at 0 degree Celsius so that the resistance of the combination does not change with temperature
Asked by khedejalaj7
24th September 2018
10:47 AM
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CBSE X Physics Electricity
how electricity passes through a area of cross section
Asked by kiransudhakommuru
12th October 2018
2:37 PM
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CBSE X Physics
Earth have how many capistance and resistance
Asked by Ankur.samanta777
2nd November 2018
12:51 AM
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CBSE X Science
Solve them please:
Asked by guptaabhinav0809
23rd November 2018
10:42 PM
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CBSE X Physics Electricity
What is resistivity
Asked by gurpreetsandhu97793
29th November 2018
4:53 PM
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CBSE X Physics Electricity
How solve problems related to resistance
Asked by randhirsingh
1st January 2019
6:36 PM
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ICSE X Physics
A metal wire of resistance of 6Ω is stretched so that its length is increased to thrice its original length. Calculate its new resistance.
Asked by om.chaudhari1673
23rd January 2019
4:43 PM
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NEET NEET Physics Current Electricity
Please answer the following question with explanation
Asked by deepakudgiri29
23rd January 2019
5:38 PM
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Maharashtra X Science
Electric current creates heat in the resistor. Explain
Asked by vijaywakude22
31st January 2019
8:37 PM
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CBSE X Physics Electricity
A bulb is rated as 60W , 220V . what does it mean?
Asked by tannurocks1901
7th February 2019
6:59 PM
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CBSE X Physics Electricity
Please answer asap.
Asked by sameekshyakar
8th February 2019
7:33 PM
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ICSE X Physics Current Electricity
In a circuit diag. A cell of 9V and internal resistance o.5 ohm is connected across a resistor A of 2 ohm in series and two resistors 2 ohm and 6 ohm in parallel.FIND: total resistance total current current in 6 ohm resistor P.D. across the terminals of the cell.
Asked by malapandey8278
11th February 2019
12:36 PM
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JEE Main Physics Current Electricity
The combined resistance of galvanometer of resistance 500 ohm and shunt is 25 ohm calculate the value of shunt
Asked by ashraf.ma4444
22nd February 2019
11:02 AM
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CBSE X Physics
An electric bulb rated for 200w and 100v is connected to a circuit having a 200v supply. What is the resistance R that must be put in series with the bulb so that the bulb draws 200w?
Asked by saradamahapatra9999
7th March 2019
10:29 AM
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CBSE X Physics Electricity
How will the resistance change if the length of the wire is doubled?
Asked by ms0851000
11th March 2019
6:55 PM
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CBSE X Physics Electricity
How will the resistance of a wire change if the area of cross section of wire is increased to 3 times?
Asked by ms0851000
11th March 2019
7:03 PM
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CBSE X Physics Electricity
A copper wire ha a diameter of 0.5mm and a resistivity of 
ohm cm. How much of this wire will be necessary to make a 10 ohm coil? How much does the resistance change if the diameter is doubled?
Asked by adalroshan2464
28th March 2019
2:54 PM
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JEE Main Physics Current Electricity
Plz explain me while solving it, that in final step how do we choose the final R,in final step for V=RI
Asked by vishakhachandan026
29th March 2019
4:12 PM
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JEE Main Physics Current Electricity
Explain it with reasons plz
Asked by vishakhachandan026
1st April 2019
8:31 AM
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ICSE X Physics Current Electricity
please answer both of these question soon
Asked by defence
4th April 2019
7:20 PM
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CBSE X Physics Electricity
a given length of a wire is doubled of itself and this process is repeated once again. by what factor does the resistence of the wire changes
Asked by ajayrath7
4th April 2019
7:44 PM
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CBSE X Physics Electricity
Please find the attached question,
Asked by ajayrath7
6th April 2019
10:01 AM
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CBSE X Physics Electricity
two wires of same material has length in ratio 1:2. If the difference in their series and parallel equivalent is 21 ohm then calculate the resistances of the wire.
Asked by Aritra
16th April 2019
11:43 PM
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CBSE X Physics Electricity
A battery of 5V and internal resistance 1ohm is connected to a combination 8ohm and 11ohm connected in series with each other. Calculate the current in the circuit.
Asked by nibedita.behera.0308
20th April 2019
11:02 AM
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CBSE X Physics
why is resistance directly proportional to the termperature ina conductor
Asked by MUSKAN
1st May 2019
8:32 PM
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CBSE X Physics
Two light bulbs are marked 230 V; 75 W and 230 V; 150 W. If the first bulb has a resistance R, then the resistance of the second is?
Asked by Archana
10th May 2019
7:59 PM
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CBSE X Physics
A conductor has a length of 2 0 m and a radius of 3 0 mm If the resistance is R= 100Ω, calculatethe new resistance if the same material has: (a) length=6 0 m and r=6 0 mm (b) length=1 0m and r=1 0mm ... If the resistance is R=100Ω, calculate the new resistance if the same material has: ... (a) length = 6.0m and r=6.0mm(b) length=1.0m and r= 1.0mm.
Asked by bcnandi
12th May 2019
2:14 PM
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CBSE X Physics
What resistance must be added in series to a circuit containing a 33 ohms resistor in order to draw 2.0 Amps of current from a 120 volts source?
Asked by bcnandi
12th May 2019
4:09 PM
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CBSE X Physics Electricity
A wire of length 10 cm is bent in the form of a circle of radius 2 mm. Calculate equivalent resistance along any two diametrically opposite points if total resistance of wire was 4 ohm
Asked by shailendra.ca1976
16th May 2019
9:45 PM
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CBSE X Physics Electricity
From the diagram, determine i) the equivalent resistance of the entire circuit ii) the current through each resistor iii) th total currnt from the power supply iv) the voltage drop across each resistor PLEASE REPLY AS SOON AS POSSIBLE
Asked by piyushmalik024
18th May 2019
10:12 AM
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CBSE XII Science Physics
find unknown resistance X, if no current flows through AO
Asked by shaileshbhagat82816
21st May 2019
9:45 PM
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CBSE X Physics
An electric bulb and heater are rated as (100watt-220volt) and (1000 watt-220v) respectively . Compare their resistance.
Asked by Anjukayal86477
23rd May 2019
2:38 PM
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CBSE X Physics
Difference between resistance and resistivity
Asked by adityarajni6
23rd May 2019
9:12 PM
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CBSE XII Science Physics Current Electricity
how to find range of galvanometer when current and resistance is given
Asked by krvrvijai
27th May 2019
2:05 PM
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JEE Main Physics Current Electricity
GIVE THE EFFECTIVE RESISTANCE BETWEEN A and B ( all resistance in the figure are 16 ohm ) OPTIONS 1) 1 ohm 2) 2 ohm 3) 3 ohm 4) 4 ohm
Asked by ranjan.rr366
27th May 2019
9:12 PM
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CBSE X Physics Electricity
A resistance wire made from German silver has a resistance of 4.25 ohm. Calculate the resistance oi another wire, made from the same material such that its length increased by 4times and area decreased by 3times.
Asked by sudhma3u
31st May 2019
7:12 AM
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CBSE X Physics Electricity
To find rarional btw potential difference and current
Asked by Gaganyadav0037
3rd June 2019
5:30 PM
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CBSE X Physics Electricity
what is difference between resistance and resistivity
Asked by ashishaman25082004
21st June 2019
2:17 PM
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CBSE X Physics Electricity
if resistance is a property of conductor then how does it has magnitude .If it is possible for a property to have magnitude then plz give some other examples of such kind for my better understanding
Asked by ashishaman25082004
21st June 2019
7:09 PM
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NEET NEET Physics Current Electricity
Please explain Ans is 8 ohm
Asked by valavanvino1011
28th June 2019
9:06 PM
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CBSE XII Science Physics
Find the resistance between the points : 1) A and B 2) A and C
Asked by prakriti12oct
17th July 2019
9:11 PM
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NEET NEET Physics
Length of wire L and its resistance is R now length is increased by 10 time than resistance becomes 100 ohm than the value of R=?
Asked by Arjanmodhwadiya15
17th July 2019
10:49 PM
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CBSE XII Science Physics
Find the equivalent resistance between the points a and b
Asked by prakriti12oct
18th July 2019
9:10 AM
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NEET NEET Physics
Which is correct graph
Asked by Prashant DIGHE
18th July 2019
5:18 PM
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NEET NEET Physics
What is value of R
Asked by Prashant DIGHE
19th July 2019
5:09 PM
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NEET NEET Physics
What is the value of R
Asked by Prashant DIGHE
22nd July 2019
3:45 PM
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ICSE IX Physics
determine the resistance of a copper wire having a length of 1 km and diameter of 0.5 mm
Asked by mintosingh935
23rd July 2019
8:50 PM
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ICSE X Physics
Why does the glow on bulb increases with the increase in resistance of the filament of the bulb with the increase in temperature (when resistance is inversely proportional to conductance)?
Asked by nidhisingh200418
24th July 2019
12:44 AM
Answered by Expert
ICSE XII Science Physics
A coil takes a current of 2.0A and 200 watt power from an alternating current source of 220 volt , 50 Hertz . Calculate the resistance and inductance of the coil
Asked by hasnain.hossain121
24th July 2019
11:25 AM
Answered by Expert
CBSE X Physics Electricity
When the wire is streched 3 times the length then the length increase and the area of cross section also decrease therefore the resistance increase.
Asked by vedantkulkarni499
6th August 2019
7:51 PM
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JEE Main Physics
Urgent! please solve the problem in the given image with steps.
Asked by miaowmira1900
12th August 2019
1:21 AM
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CBSE XII Science Chemistry Electrochemistry
Plz answer 3.14
Asked by lovemaan5500
13th August 2019
5:47 PM
Answered by Expert
JEE Main Physics
Please solve the problem in the picture as soon as possible.... with steps.
Asked by miaowmira1900
16th August 2019
1:35 AM
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CBSE X Physics Electricity
here cut the wire not the power of resistance...so the resistant of the pieces of wire remain same...isn't it..???
Asked by prasantasenapoti98
28th August 2019
6:03 PM
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ICSE X Physics
What happens to the Resistance if the given wire is stretched and the length gets doubled and the area of cross section gets halved.
Asked by aashimegh
7th September 2019
10:13 PM
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NEET NEET Chemistry Redox Reactions and Electrochemistry
Please answer the following question.
Asked by Balbir
8th September 2019
4:17 PM
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NEET NEET Chemistry Redox Reactions and Electrochemistry
Please answer the following question.
Asked by Balbir
9th September 2019
6:02 PM
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CBSE X Physics Electricity
You have three resistors of value 2 ohms 3 ohms and 5 ohms how will you join them so that total residence will more than 7 ohms
Asked by rahulkumar720925
10th September 2019
11:03 AM
Answered by Expert
CBSE X Physics Electricity
Resistance of 20ohm, 20ohm and 30ohm are connected in parallel.what resistance must be added in series with the combination to obtain a total resistance of 10ohm.if the complete circuit expands a power of 0.36KW, Find the total current flowing. (Ans 2.5ohm , 6A)
Asked by unshad786
13th September 2019
12:24 PM
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Maharashtra X Physics
give two difference between resistance and resistivity of wire
Asked by ndshah14
23rd September 2019
12:48 PM
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CBSE XII Science Physics
There is a inductor connected with voltage 10V. AC volt 50Hz such that the current flowing in the inductor is 0.1A. The phase angle between current and voltage is 60°. Find impedance, resistance, and inductance of conductor.
Asked by sharmujjwal00
17th October 2019
6:59 AM
Answered by Expert
CBSE X Physics
what is resistor
Asked by kauraaaradhana
11th December 2019
7:11 PM
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CBSE X Physics Electricity
Equivalent resistance of series combination of resistors derive it
Asked by hiranishabbir18
20th December 2019
9:34 AM
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CBSE X Physics
Hi Sir/Madam I did not understand below question and not sure how we will get answer, Would you please advise how we get the answer Question:If the ammeter in the given circuit reads 2A, the resistance R is attached the picutre
Asked by sreekumar1974
22nd December 2019
10:51 PM
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ICSE IX Physics Current Electricity
A bulb draws current 1.5 at 6.0V .Find the resistance of filament of bulb while growing .
Asked by anilrktnayak
27th December 2019
4:43 PM
Answered by Expert
CBSE X Physics
A wire of resistance 10 ohm is drawn out of so that the length is 3 has its original line calculate its new resistance
Asked by sandhushivanand2004
27th December 2019
8:28 PM
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CBSE XII Science Physics
A storage battery of emf 12V and internal resistance 0.5 ohm, is to be charged by a 120V D.C supply of negligible internal resistance. What resistance is required in the circuit for the charging current to be 3A? Calculate: i)How much chemical energy from the dc source is converted to electrical energy? ii)How much electrical energy is converted to chemical energy in the storage battery?
Asked by rayyan20151
5th January 2020
1:52 AM
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ICSE X Physics Current Electricity
what are the cause of resistance in a conductor
Asked by bhanu563y
6th January 2020
10:35 PM
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ICSE X Physics Current Electricity
what are the cause of resistance in a conductor
Asked by bhanu563y
7th January 2020
5:15 PM
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CBSE X Physics
Resistance of a metal wire of length 1m is 26 ohm at 20 degree C. If the diameter of the wire is 0.3mm, what will be the resisivity of the metal at that temperature?
Asked by Annababu000
8th February 2020
3:42 PM
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CBSE X Physics
What is the difference between resistance and resistivity?
Asked by abhinav21621
8th February 2020
5:07 PM
Answered by Expert
CBSE X Physics Electricity
Four points A,B,C and D are in a line .If resistance between A and B , B and C ,C and D are 2 ohm, 4 ohm ,6 ohm respectively then what will be the effective resistance between A and B
Asked by saradamahapatra9999
17th February 2020
10:51 AM
Answered by Expert
CBSE X Physics Electricity
tow resistances r1 and r2 are connected in parallel . total current flowing throgh circuit is i . derive expression for currents flowing thorough tow resistances ?
Asked by Chandnipillai7
28th February 2020
12:33 PM
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CBSE XI Science Chemistry Equilibrium
??
Asked by SanskarAgarwal86
29th February 2020
4:36 AM
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CBSE XII Science Physics
Sir pl answer
Asked by jain.pradeep
29th February 2020
10:45 AM
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CBSE X Physics Electricity
unit of electrical resistance
Asked by barkha.jalan.1211
19th March 2020
11:59 AM
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CBSE X Physics Magnetic Effects of Electric Current
What is resistance
Asked by Stp.lmp861976
27th March 2020
9:17 PM
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CBSE X Physics Electricity
A piece of wire of resistence 20 ohm drawn out to increase its length to twice as original length .calculate its resistence now.
Asked by Selvadhaya
30th March 2020
1:55 PM
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NEET NEET Physics Current Electricity
Resistance of a cylindrical wire of length 27cm of cross section 1cm^2 is 2ohm. This cylinder is recast into a solid cube. Find the resistance of this cube along any two parallel faces.
Asked by vijaethatr2003
30th March 2020
7:19 PM
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CBSE X Physics Electricity
what is the difference between resistance and resistivity of a conductor
Asked by sunil.limbale
19th April 2020
12:30 PM
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CBSE X Physics Electricity
Please solve.
Asked by karanbora625
22nd April 2020
7:55 PM
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CBSE X Physics
What is the total resistance of this diagram
Asked by roshanshakya1977
9th May 2020
6:04 PM
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CBSE X Physics
find resistance between A and B.
Asked by shubham0kumar24
16th May 2020
10:22 PM
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CBSE X Physics Electricity
Two lamps rated (100w, 220v) and (60w, 220v) are connected in parallel. which lamp consumes more energy and which one gives more brightness? Find the resistance of each lamp. ( Take supply voltage as 220 v).
Asked by niharikag_2004
3rd June 2020
4:00 PM
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CBSE XII Science Physics
ans this plz
Asked by ac9968252687
11th June 2020
7:46 PM
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CBSE X Science Electricity
how to solve this question
Asked by rusuishika
15th June 2020
4:34 PM
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CBSE X Science Electricity
copper wire has a diameter of 0.5mm and the resistivity is 1.6x10^-6 ohm cm.how much of the wire would be required to make 10 ohm coil
Asked by rusuishika
15th June 2020
4:39 PM
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CBSE X Physics Electricity
What is difference between resistance and resistivity
Asked by chahatshukla5155.bmps
19th June 2020
11:15 AM
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ICSE X Physics Machines
what is the resistance offered by nut
Asked by suneelmsc
14th July 2020
3:04 PM
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CBSE X Physics
What gauge wire should I use? Nichrome or kanthal? whose resistance vary to temperatura and how much?
Asked by rohitshorya
15th July 2020
8:03 PM
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CBSE XI Science Physics Thermal Properties of Matter
9. The resistance of a resistance thermometer has values 2.70Q and 3.70Q at OOC and 1000C respectively. The temperature at which the resistance is 3.100 is
Asked by Venkeylkm
16th July 2020
4:12 PM
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CBSE X Physics Electricity
the effective resistance between A and D in the circuit
Asked by vaishnavipayel0056
17th July 2020
9:23 AM
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ICSE X Physics
why are some conductors like LED bulb etc. non-ohmic resistors. what characteristics does it have to make it non-ohmic?
Asked by saibaba1069
19th July 2020
5:41 PM
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CBSE XII Science Physics Current Electricity
i want full explanation of example 157 pls help me
Asked by niveshpritmani
2nd August 2020
11:50 AM
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CBSE X Physics
Draw a circuit diagram of an electric circuit containing a cell a key an ammeter a resister of 2 ohm in series with a combination of two resisters of 4 ohm each in parallel and a voltmeter across the parallel combination. Will the potential difference across the 2 ohm resisters be the same as that across the parallel combination? Give reasons.
Asked by shihanpanwar539
5th August 2020
8:58 PM
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NEET NEET Physics
What is the actual significance of infinite resistors arranged in series or parallel in real life? Do we use them in real life anywhere ?
Asked by benilsamjh
7th August 2020
11:06 AM
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CBSE X Science
write a short note on resistor
Asked by tanishares
15th August 2020
12:41 PM
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CBSE XII Science Physics
H=V^2/R t . Heat produced per unit time (h): h=V^2/R . Appliances are connected in parallel in home, V is constant ⇒h∝ 1/R . So, How one explains that High Resistance Wires (Such as Nichrome) are used as heating elements in various appliances?
Asked by malikshailav
15th August 2020
4:59 PM
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CBSE X Physics
Find equivalent resistance across a and b
Asked by ss5832463
30th August 2020
9:44 AM
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CBSE X Physics
Find the area of cross-section of the wire which when connected across the potential difference of 150 volts; produce a current of 5 milli ampere. It is given that the length of the wire is 20 centimeter and resistivity is 10 Ohm-centimeter.
Asked by nehchalrs15
2nd October 2020
10:13 AM
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CBSE X Physics Electricity
how to calculate the resistance if the resistors are inclined between parallel wires
Asked by acshanadhana15
18th October 2020
7:21 PM
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CBSE X Science
why is minimum resistance calculated by applying parallel series formula
Asked by acshanadhana15
19th October 2020
4:23 PM
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CBSE X Physics Electricity
define the term ohm meter
Asked by singhchander260
18th November 2020
8:03 PM
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CBSE X Physics Electricity
what is effective resisitance and how can we find it
Asked by abhinavpandey7345
4th December 2020
7:12 AM
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CBSE X Physics
a) An electric bulb is rated 220v and 100w what is its resistance? b) calculate the energy consumed by 3 such bulbs if they glow continuously for 10 hours for complete month of november. c)calculate the total cost of the rate at 6.50 per unit.
Asked by ohilubana006
6th February 2021
8:54 PM
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CBSE XII Science Physics Current Electricity
What is resistance?
Asked by pappuchandra017
16th February 2021
3:56 AM
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NEET NEET Physics Current Electricity
at what temperature would the resistance of a copper wire be double its resistance at zero degree celsius if Alpha is equals to 1 by 273 degree Celsius inverse
Asked by singhnatasha79551
20th March 2021
10:50 AM
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CBSE X Science
1--Why does the cord of an electric heater not glow while the heating element does ?? 2--what determines the rate at which energy is delivered by a current ?? 3--give reasons why copper is used to make a hot water tanks and not steel??
Asked by kameshwarprasad774
27th March 2021
6:59 AM
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ICSE X Physics Current Electricity
calculate the resistance of 1km long copper wire of radius 1mm
Asked by nutanpf
27th March 2021
4:41 PM
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CBSE X Physics Electricity
Define resistance and also explain it through ohm law?
Asked by swatipuspapatel
8th April 2021
8:02 PM
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CBSE X Physics Electricity
a potential difference of 10 volt is needed to make a current of 0.02 impair for flow through a wire. what potential difference is needed to make a current of 250 mili ampere flows through the same wire
Asked by kritikabrahma23
13th April 2021
7:22 PM
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CBSE XII Science Physics Current Electricity
A wire of resistance of 20Ω is cut into two equal pieces, how will its resistance and resistivity change?
Asked by randeepsj
28th April 2021
11:08 AM
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CBSE X Physics Electricity
Study the VI graph for a resistor as shown in the figure and prepare a table showing the values of I (in amperes) corresponding to four different values of V (in volts). Find the value of current for V = 10 volts. How can we determine the resistance of the resistor from this graph?
Asked by harjot.arshleen
21st May 2021
6:48 PM
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CBSE X Physics Electricity
An electric iron has a rating of 750w,220v, calculate the current flowing through it and its resistance when in use
Asked by praveengupta2919.9
31st May 2021
2:53 PM
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CBSE X Physics Electricity
photo attached
Asked by amaarisa
13th July 2021
9:36 AM
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ICSE IX Physics Current Electricity
a cell is connected to a bulb which develops a potential difference of 12 volt are connected the current in the circuit is measured to e 4 ampere find the resistance offered is the filament of the ul to flow the current
Asked by mdd19203
30th December 2021
9:11 PM
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CBSE X Physics Electricity
what is formula for Resistance in series and parallel
Asked by topperlearningforcontent
23rd February 2022
11:34 AM
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ICSE X Physics Current Electricity
A cell of EMF 2V and internal resistance 1ohm is connected with two wires of resistances 2ohm and 3ohm in parallel. Find the current in each wire.
Asked by www.utkarshdubey1408
20th April 2022
10:52 PM
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CBSE XII Science Physics Current Electricity
solve
Asked by whoami230302
17th January 2023
3:48 PM
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CBSE X Physics Electricity
A given length of a wire is doubled of itself and this process is repeated once again.By what factor does the resistance of the wire changes?
Asked by prassanna.j
3rd September 2023
12:11 PM
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CBSE X Physics Electricity
Nichrome wire of length L and radius R has resistance 10 ohm.How would the resistance of the wire change when: only diameter of the wire is doubled?Justify
Asked by prassanna.j
3rd September 2023
12:21 PM
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CBSE X Physics Electricity
the resistance of a wire of 0.01 cm radius is 10 ohm.if the resistivity of the material of the wire is 50*10^-8 ohm meter find the length of the wire
Asked by prassanna.j
3rd September 2023
12:28 PM
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JEE Main Physics Current Electricity
17 question
Asked by saharanmanish44
3rd October 2023
7:43 PM
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