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CBSE - XII Science - Physics - Electric Charges and Fields
electrostatic force
Asked by manishakumariroy321
10th October 2023,
9:02 PM
CBSE - XII Science - Physics - Electric Charges and Fields
1. If there is a reduction of 1000 e in comparison to the normal state on a charged conductor, then tell the magnitude and nature of the charge present on the conductor?
Asked by sp6201522801
28th December 2022,
10:09 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What is charge
Asked by sp6201522801
25th December 2022,
9:33 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Please solve this Question..
Asked by carnivalgirl8421
29th June 2022,
10:03 PM
CBSE - XII Science - Physics - Electric Charges and Fields
6.25*10^12 electrons were removed from a glass rod. What is the magnitude of positive charge acquired by the glass rod?
Asked by mb2022138
25th May 2022,
8:37 AM
CBSE - XII Science - Physics - Electric Charges and Fields
what is negative charge
Asked by ranjanpriy65
1st April 2022,
12:32 PM
CBSE - XII Science - Physics - Electric Charges and Fields
intrinsic
Asked by nailemwangjen79
14th July 2021,
9:03 AM
CBSE - XII Science - Physics - Electric Charges and Fields
if we rubbed comb in hair and then we brought near paper then we see they get attract each other ,so in that case comb is negative or positive charge ?
Asked by prakashseema091
31st May 2021,
3:18 PM
CBSE - XII Science - Physics - Electric Charges and Fields
charge of electron is negative but in solving numericals why we take charge of the electron POSITIVE?????
Asked by deeptykundu03
20th May 2021,
12:28 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Pick the true statements about electric field lines It provides information about the direction of the electric field Electric field lines provide information about the type of charge Electric field lines provide information about the field strength All of the above
Asked by adastutorials
29th April 2021,
3:39 PM
CBSE - XII Science - Physics - Electric Charges and Fields
when some charge given to a material spreads on the entire surface, it is a conductor. how? explain
Asked by goyalpavitarta
27th April 2021,
1:19 PM
CBSE - XII Science - Physics - Electric Charges and Fields
a charged sheet having surface charge density 15 ^-4 cm^-2 is given. find charge on sheet if it's surface area is 1000 cm^ 2
Asked by nehasunda100
17th April 2021,
5:31 AM
CBSE - XII Science - Physics - Electric Charges and Fields
state and explain coulombs law
Asked by ravitejahurakadli0279
13th August 2020,
8:00 PM
CBSE - XII Science - Physics - Electric Charges and Fields
what is electrostatic
Asked by kashishsinghal92
8th July 2020,
2:59 PM
CBSE - XII Science - Physics - Electric Charges and Fields
what is electric field
Asked by Sourabhsaha1299
25th June 2020,
5:04 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Q - 11
Asked by majethiyarishat9566.12sdatl
21st June 2020,
1:51 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Q - 10
Asked by majethiyarishat9566.12sdatl
21st June 2020,
1:51 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Q - 9
Asked by majethiyarishat9566.12sdatl
21st June 2020,
1:50 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Q - 8
Asked by majethiyarishat9566.12sdatl
21st June 2020,
1:49 PM
CBSE - XII Science - Physics - Electric Charges and Fields
what is electrically charged?
Asked by kumar333
2nd June 2020,
8:32 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Two like charges exert a force of repulsion of 3.5 N on each other. What will be the force of the distance between the charges increased to five times the original value?
Asked by tippanjanhavi5320.12sdatl
8th May 2020,
1:31 PM
CBSE - XII Science - Physics - Electric Charges and Fields
si unit of pemitivity
Asked by nithinsgnithin38
29th April 2020,
8:56 PM
CBSE - XII Science - Physics - Electric Charges and Fields
a charge + q is placed at each of the four corners of a square of side a. what charge should be placed at the centre of the square so that entire system remain in equilibrium ?
Asked by nishatrivedi55
13th April 2020,
7:18 PM
CBSE - XII Science - Physics - Electric Charges and Fields
energy associated with a moving charges with due to
Asked by sunithakeerthimonishkumar
4th April 2020,
10:34 AM
CBSE - XII Science - Physics - Electric Charges and Fields
sir , i am feeling difficulty in electric charge and fields pls help me how to learn it???
Asked by rahmanafeef
24th March 2020,
7:40 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Plzz solve
Asked by fishtailfever
18th March 2020,
12:57 PM
CBSE - XII Science - Physics - Electric Charges and Fields
two Two charged particles of the equal charges are placed 1 metre apart. The initial acceleration of each of them is 1 metre per second if there are equal mass is 10 10 raise to minus 3 find the charge on each of them.
Asked by roshnipatil6779
18th February 2020,
2:15 PM
CBSE - XII Science - Physics - Electric Charges and Fields
An air-core capacitor is charged by a battery. After disconnecting it from the battery, a dielectric slab is fully inserted in between its plates. Now, which of the following quantities remains constant? A) Energy B) Voltage C) Electric Field D) Charge
Asked by lissyjeslyn
11th February 2020,
11:39 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What will be the solution of Sin(3x) = 1/2 in the interval (pi, 2pi)
Asked by anushankdagar95
23rd October 2019,
8:55 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Hi
Asked by jain.pradeep
28th May 2019,
9:20 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Hi
Asked by jain.pradeep
28th May 2019,
9:16 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Hi
Asked by jain.pradeep
26th May 2019,
6:41 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Please explain that how can we make a body positively charged by earthing
Asked by govtsecschoolnayaganv051
2nd April 2019,
3:51 PM
CBSE - XII Science - Physics - Electric Charges and Fields
from electrostatics, volume charge distribution is when charge is uniformly distributed over the volume. Does it mean the charge is through out volume means inside the conductor also. As per me charge stays only on surface not inside the conductor than how volume charge distribution makes sense ?
Asked by salujavinit123
25th March 2019,
11:14 PM
CBSE - XII Science - Physics - Electric Charges and Fields
From class 12 electro statics. Why insulater get polarised when they are near to charged body when there is no free electron in insulater? as small piece of paper get polarised and gets stick to charged comb ???
Asked by salujavinit123
25th March 2019,
11:05 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Good afternoon sir, Sir could you provide me all the definitions and derivations of Physics of class 12 CBSE board
Asked by PARTHAGRAWAL914
26th February 2019,
1:43 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Name any property of electric charge?
Asked by Shyam
24th December 2018,
10:56 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Are we supposed to learn all the examples of static charges and all (glass rod, silk cloth etc) given on Pg 2 of NCERT Part 1? (for the purpose of board)
Asked by सुधाकर
23rd July 2018,
8:58 AM
CBSE - XII Science - Physics - Electric Charges and Fields
two small identical electrical dipole AB and CD of dipole moment p each are kept at an angel 120.what isthe resultant dipole moment . if this is the syestem subjected to E directed along +x direction.what will be the magnitude and direction of torque acting on it? justify ur ans.
/
Asked by vasturushi
25th December 2017,
8:06 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Asked by modi72879
4th December 2017,
1:16 PM
CBSE - XII Science - Physics - Electric Charges and Fields
calculate
Asked by bijuaylara111
2nd September 2017,
4:12 PM
CBSE - XII Science - Physics - Electric Charges and Fields
While charging a metalic sphere by induction,
while charging +vely, when grounded electrons flow from sphere to earth
but while charging the sphere -vely, electrons flow from earth to sphere. Why is this so?
Why won't +ve charges flow to ground? Is it because +ve charges don't flow?
Asked by Prem
26th August 2017,
11:34 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Can we define an electric charge? If yes, how? What is its defenition?
If No, Then How can we say or explain electric charge in a simple statement?
Asked by Prem
26th August 2017,
11:30 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Can we covert neutral body into charged body?
Asked by Rohit
28th July 2017,
10:53 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Q)
Asked by araima2001
15th July 2017,
9:28 PM
CBSE - XII Science - Physics - Electric Charges and Fields
4 charges equal to -Q are placed at the four corners of a square and a charge q is at its centre.If the system is in equilibrium th value of q is
Asked by banga71
16th June 2017,
2:56 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Q1. Why repulsion is the test of sureity?
Asked by Rahul
13th June 2017,
2:05 PM
CBSE - XII Science - Physics - Electric Charges and Fields
what is meant by charge is quantised
Asked by vinodjoshi112233
11th April 2017,
10:58 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two positive charges q1 and q2 locaed at a point with radius vector r1and r2.Find the negative charge q3 and a radius vector r3 of the point at which it has to be placed for the force acting on each of the three charges equal to zero.
Asked by Balbir
7th April 2017,
10:54 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two small charges,each having a mass of 20g,are suspended from a common point by two insulating string of length 40cm each.The spheres are identitically charged and the separation
between the balls at equilibrium is found to be 4cm.Find the charge on each sphere.
Asked by Balbir
31st March 2017,
10:12 PM
CBSE - XII Science - Physics - Electric Charges and Fields
actaully my question is for notes related to all subjects you give me notes i had some confusion you make these notes from any refresher aur by ncrt book and some topic notes had same note as chapter notes why is my computer had any problem aur its not scan by my computer
tell me full detail about these notes
Asked by saggugurupal
31st July 2016,
6:28 PM
CBSE - XII Science - Physics - Electric Charges and Fields
two equal point charges A and B are r distance apart. A third point charge placed on the perpendicular bisector at a distance d from the centre will experience maximum electrostatic force when ....? give the relation of d and r....
Asked by dilipdevesh1170
13th June 2016,
4:30 PM
CBSE - XII Science - Physics - Electric Charges and Fields
four charges each equal to Q are placed at the four corners of a square and a charge q is placed at its centre of the square. If the system is in equilibrium then the value of q is
Asked by dilipdevesh1170
13th June 2016,
3:52 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A particle of mass m and carrying charge -q1 is moving around a charge +q2 along a circular path of radius r. Find period of revolution of charge -q1........
Asked by dilipdevesh1170
10th June 2016,
12:45 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two pith balls carrying equal charges are suspended from a common point by strings of equal length , the equilibrium separation between them is r. now the strings are rigidly clamped at half the height. The euilibrium seperation between the balls now become
1. r/cuberootof2
2. 2r/under root 3
3. 2r/3
4.(1/under root of 2)raise to power 2
Asked by dilipdevesh1170
10th June 2016,
11:36 AM
CBSE - XII Science - Physics - Electric Charges and Fields
when a conducting soap bubble is negatively charged then
a. its size starts varying arbitarily
b. it expands
c. it contracts
d. no change in its size takes place
Asked by dilipdevesh1170
7th June 2016,
8:32 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two identical small bodies each of mass m and charge q are suspended from two strings each of length l from a fixed point. This whole system is taken into an orbiting artificial satellite, then find the tension in strings.
Asked by vinitamalaviya
17th May 2016,
11:26 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Differentiate between conductors and insulators.
Asked by Topperlearning User
5th May 2016,
5:40 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A material of mass 5 g contains 3 × 1022 atoms. The nucleus of each atom possesses a charge of 25e. To give it a charge of 4.8 μC, what percentage of electrons must be removed from it?
Asked by Topperlearning User
5th May 2016,
5:40 PM
CBSE - XII Science - Physics - Electric Charges and Fields
could similar charges attract each other??
Asked by naveenmall860
8th April 2016,
6:18 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Charges of -2 x 10 -10 C , 2 x 10 -10 and 4 x 10 -10 C are placed at corners A , B and D of asquare of side 2m . Calculate the resultant field at the centre of the square.
Asked by rutujasarangmehta
4th March 2016,
10:07 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Two point charges 9 x 10 -8. and -9x10 -8 C are 0.5 m appart in air. Find the resultant electric intensity at a point located 0.5 m from either charge.
Asked by rutujasarangmehta
4th March 2016,
9:45 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Suppose that you are in a cave deep within the earth. Are you safe from electrical storms?
Asked by coollucky1918
21st February 2016,
12:08 PM
CBSE - XII Science - Physics - Electric Charges and Fields
3 identical charged spheres each having charge 'q' and mass m are suspended from same point through a 3 equal strings of length 'l' . if they are in equilibrium at the vertices of an equilateral triangle of side length 'a'. find 'a'.
Asked by Sunil Soni
16th January 2016,
8:56 AM
CBSE - XII Science - Physics - Electric Charges and Fields
>We know that, any charged body like glass rod rubbed with silk cloth,acquires charge and gets neutralised after sometime by exchanging charges with its surrounding atmosphere.
>Will the same thing(neutralisation of body) happens in vaccum or will the body remains charged forever?
Asked by Dhruva
19th October 2015,
8:52 PM
CBSE - XII Science - Physics - Electric Charges and Fields
TWO CHARGE CONDUCTING SPHERES OF RADIUS A AND B ARE CONNECTED BY A THIN CHARGE CONDUCTING WIRE THEN
1.FIND THE RATIO OF THEIR CHARGE
2.RATIO OF ELECTRIC FIELD AT THEIR SURFACES
Asked by Devesh
4th October 2015,
4:56 PM
CBSE - XII Science - Physics - Electric Charges and Fields
how to find work done to move a charge attracted by another charge from its original place to a another place 2 metres away.
Asked by asthahunny
20th June 2015,
3:51 PM
CBSE - XII Science - Physics - Electric Charges and Fields
The force experienced bya unit charge when placed at a distance of 0.10m from the idle pf electric dipole on its axial line is 0.025 N and when it is placed at a distance of 0.2m, the force is reduced to 0.002N. Calculate the dipole lenght.
Asked by dinabawistale
29th May 2015,
2:32 PM
CBSE - XII Science - Physics - Electric Charges and Fields
two point charge 2microcoulomb and 6 microcoulomb repel each other with a force of 12N if each is given a additional charge of -4microcoulomb ,what will be the new force?
Asked by Subhashree Lenka
23rd May 2015,
10:22 AM
CBSE - XII Science - Physics - Electric Charges and Fields
what is cause of quantizaion of charge
Asked by sagarjeevtani
19th May 2015,
3:39 PM
CBSE - XII Science - Physics - Electric Charges and Fields
When we stand on an insulating material and pass high voltage electric current through our body, the electric potential of our body gets increased. This means that the potential energy of the body increases. Does this mean that the energy of our body increases?? Like, we get energy if we stand on an insulating material and pass electric current through our body??
Asked by hilhew7
15th May 2015,
5:59 PM
CBSE - XII Science - Physics - Electric Charges and Fields
is the mass affected by the charging?
Asked by Dave Agresha
6th May 2015,
7:57 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A particle A of charge q placed near a uniformly charged infinite plane sheet with surface charge density sigma experiences a force f1, When this particle is placed near an infinite metal plate with surface charge density sigma , it experiences a force f2 .Then what is f1/f2 equal to?
A) 1
B) 2
C) 1/2
D) 3
Please explain.
Asked by Kb Aulakh
27th April 2015,
11:49 PM
CBSE - XII Science - Physics - Electric Charges and Fields
The electric potential existing in space is v=xy+yz+zx.Find the force on an electron at [1,1,1].explain how to do this??
Asked by Kb Aulakh
23rd April 2015,
2:21 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Two equal heavy masses are situated at a separation 
. One of them is imparted a velocity 
=
perpendicular to the line joing them. Treating motion only under mutual gravitational force find the ratio of maximum and minimum separation between them.
. One of them is imparted a velocity = perpendicular to the line joing them. Treating motion only under mutual gravitational force find the ratio of maximum and minimum separation between them.
Asked by Aryan Bhatia
19th April 2015,
12:13 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Is the force acting between two point electric charges q1 and q2 kept at some distance apart in air attraction or repulsive when (i) q1q2 > 0 (ii) q1q2 < 0 ?
Asked by Topperlearning User
17th April 2015,
1:09 PM
CBSE - XII Science - Physics - Electric Charges and Fields
In what ways does a charge differ from the mass?
Asked by Topperlearning User
17th April 2015,
9:19 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What is Electric charge? Is it a scalar or vector quantity? Name its SI unit.
Asked by Topperlearning User
17th April 2015,
9:17 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What is meant by quantization of electric charge? What is the cause of quantization of electric charge?
Asked by Topperlearning User
17th April 2015,
9:16 AM
CBSE - XII Science - Physics - Electric Charges and Fields
How many electrons will have the charge of one coulomb?
Asked by Topperlearning User
17th April 2015,
9:11 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Explain why a glass rod held in hand can be charged by rubbing with flannel but a copper rod cannot be charged like this.
Asked by Topperlearning User
17th April 2015,
9:09 AM
CBSE - XII Science - Physics - Electric Charges and Fields
Name any two property of electric charge?
Asked by Topperlearning User
17th April 2015,
9:07 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What is the function of electroscope? Name one of the sensitive electroscope.
Asked by Topperlearning User
17th April 2015,
9:05 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What happens to the mass, when two bodies rubbed with each other?
Asked by Topperlearning User
17th April 2015,
9:04 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What do you understand by Electrostatic? Mention its two applications.
Asked by Topperlearning User
17th April 2015,
9:04 AM
CBSE - XII Science - Physics - Electric Charges and Fields
What do you understand by electrostatic induction?
Asked by Topperlearning User
17th April 2015,
9:03 AM
CBSE - XII Science - Physics - Electric Charges and Fields
How much positive and negative charge is there in a cup of water?
Asked by brigitha
15th March 2015,
9:33 PM
CBSE - XII Science - Physics - Electric Charges and Fields
I have 2 questions mam.
1).Why we find less chances of getting an static shocks during rainy season while we get shocks in winters when we touch silk or woolen clothes?
2).why birds sitting on wires never recieve shocks?
Asked by Dharvi Kumra
6th March 2015,
11:29 AM
CBSE - XII Science - Physics - Electric Charges and Fields
an uncharged conductor A is placed on an insulating stand is brought near a charged insulated conductor B .what happened to potential of B.
Asked by Ankur pandey
2nd March 2015,
11:50 PM
CBSE - XII Science - Physics - Electric Charges and Fields
A nuetron is made up of two down quarks and one up quark(ddu). so it will be negative ,but we know a neutron is neutral in nature??
Asked by whitestone7587
31st July 2014,
9:47 AM
CBSE - XII Science - Physics - Electric Charges and Fields
A nuetron is made up of two down quarks and one up quark(ddu). so it will be negative ,but we now a neutron is neutral in nature??
Asked by whitestone7587
31st July 2014,
9:46 AM
CBSE - XII Science - Physics - Electric Charges and Fields
what are quarks?
Asked by whitestone7587
30th July 2014,
11:58 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Three particles, each of mass 1 g and carrying a charge q , are suspended from a common point by insulating massless strings , each 100 cm long . if the particles are located at the corners of an equilateral triangle of side 3 cm, calculate the charge q on each particle.
Asked by Manisha Behera
27th June 2014,
2:57 PM
CBSE - XII Science - Physics - Electric Charges and Fields
charge flows from high potential to low potential or vice versa?give reason
Asked by Naman Mansotra
8th June 2014,
8:01 PM
CBSE - XII Science - Physics - Electric Charges and Fields
Estimate the no. Of electrons in 100gm of water . how much is the total negative charge on these electrons.
Asked by Sourabh
27th May 2014,
11:11 PM
CBSE - XII Science - Physics - Electric Charges and Fields
When a bird sits on a high voltage wire they dont get cunnent shoks but does it same apply to human beings, can humans also sit on wire and they dont current shoks?
Asked by OMPRAKASH
24th May 2014,
4:37 PM
