CBSE X Physics Magnetic Effects of Electric Current
please tell the important points to remember in the chapter magnetic effects?
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7th March 2008
11:05 AM
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CBSE X Physics Magnetic Effects of Electric Current
sir i want to ask that why when we move a magnet around a wire or vice ,the current is being induced in wire and , is this due to change in magnetic field as answered by google but i want to ask why does manetic field change let us assume that it is changed then, one expert answered that magnetic field is created around a wire which induces current and why does magnetic field is induced in wire and why magnetic field induces current.
pls answer the coloured rest is just explanation . I hope that you will understand my doubt and answer me with good explanation .
Asked by Ikshit
5th August 2016
8:44 PM
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CBSE XII Science Physics
why magnetic field is not conservative in nature
Asked by modi72879
21st June 2017
3:32 PM
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ICSE X Physics Electromagnetism
Who and how gave the rules to find the direction of magnetic field .
How did he verify them .Are they completely accurate.
And why their direction is important . How does their direction influence them.
Asked by lovemaan5500
4th October 2017
6:15 PM
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ICSE X Physics
Is direction of magnetic lines of force important in any way.what changes can the direction make with magnetic strength.
Asked by lovemaan5500
6th October 2017
5:49 AM
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NEET1 ALL Class Physics Magnetic Effects of Electric Current
A circular coil of cross section area 200 centimetre square and 20 turns is rotated about the vertical diameter with angular speed of 50 rad/s in a uniform magnetic field of magnitude 3*10-2T(10 to the power -2).calculate the maximum value of current in the coil
Asked by Priyanka
15th November 2017
3:52 PM
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CBSE XII Science Physics
A peculiar question... please help me...
Asked by nitishkrnehu09
18th November 2017
10:38 PM
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Asked by nitishkrnehu09
18th November 2017
10:38 PM
CBSE XII Science Physics Moving Charges and Magnetism
drive the expression for the magnetic field around a straight current carrying conductor of finite size?
please explain in detail. earlier because tomorrow is my exam.
Asked by modi72879
24th November 2017
9:29 AM
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CBSE XII Science Physics Moving Charges and Magnetism
Two short magnets P and Q are placed one over the other with their magnetic axis mutually perpendicular to each other. it is found that the resultant field at a point on the prolongation of the magnetic field of P is inclined at 30 with this axis. compare the magnetic moments of the two magnets.
Asked by modi72879
25th November 2017
11:35 AM
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NEET1 NEET1 Magnetic Effect of Current and Magnetism Moving Charges and Magnetism and Magnetism and Matter
Please give a thorough solution with reasoning.
Asked by Arushi Juyal
12th December 2017
7:18 AM
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NEET1 ALL Class Magnetic Effect of Current and Magnetism Moving Charges and Magnetism and Magnetism and Matter
Please explain it too.
Asked by Arushi Juyal
13th December 2017
7:13 AM
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NEET1 ALL Class Magnetic Effect of Current and Magnetism Moving Charges and Magnetism and Magnetism and Matter
Q
Asked by Arushi Juyal
24th December 2017
11:57 PM
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CBSE X Physics Magnetic Effects of Electric Current
PLEASE expain detailed reason behind your answer ?
PLEASE expain detailed reason behind your answer ?
Asked by abinash.gupta003
29th December 2017
2:23 PM
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ICSE X Physics
a straight current carrying wire carries an electric current of 200 A..what will be the magnetic field due to this current at point 2m away from the wire?...pls give me the formula
Asked by tluser3
3rd January 2018
9:23 PM
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CBSE X Physics
Magnetic lines of force always cross each other. State whether true or false.
Asked by abhijeet.mishra
14th March 2018
4:07 PM
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NEET1 NEET1 Physics
What is the magnetic field intensity at the centre O,due to the current flowing through the wire
Asked by rawatanilk24
20th April 2018
10:51 PM
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JEE Plances JEE (Main) Physics
2 identical concentric coils X and Y charrying current in the ratio 1:2 are arranged in mutual perpendicular planes. if the magnetic field due to the coil X is B.The net field at the centre is
Asked by hemanttkumarr
23rd May 2018
9:44 PM
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JEE Plances JEE (Main) Physics Moving Charges and Magnetism
Two concentric circular coils is having 10 turns with radius 0.2 metre and 0.4 metre carrying current 0.2 ampere and 0.3 ampere respectively in opposite direction in the magnetic field at the centre is
Asked by hemanttkumarr
23rd May 2018
9:53 PM
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CBSE XII Science Physics
the couple acting on a magnet of length 10 cm pllaced in a uniform magnetic field of intensity 40 N/wb such that the axis of the magnet makes 45 with the field direcion is underroot 2 /10 Nm ,the pole strength of the manet in webers is ?
Asked by Atulcaald
31st May 2018
9:46 PM
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JEE Plances JEE (Main) Physics
Ques 8th
Asked by rbhatt16
19th June 2018
11:02 PM
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JEE Plances JEE (Main) Physics
A beam of alpha particles projected along + X axis, experiences a force due to a magnetic field along the +Y axis. What is the direction of the magnetic field?
Asked by shikshapunia
24th June 2018
10:47 AM
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CBSE XII Science Physics Electromagnetic Induction
A jet plane is travelling due west at the speed of 1800 km/h. what is the voltage difference developed between the ends of the wings 25m long, if the earths magnetic field at the location is 0.0005 T and the dip angle is 30°？
Asked by sbtech357
27th July 2018
9:24 AM
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CBSE XII Science Physics
What is snow rule or for what purpose this rule is used
Asked by akashkumartiwari2153
4th August 2018
6:29 PM
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JEE Plances JEE (Main) Physics
Ques 20 It is single correct ques
Asked by rbhatt16
23rd August 2018
7:56 AM
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CBSE VII Science Electric Current and its Effects
Manav made an electric circuit and placed a magnetic compass near it. What will happen to the magnetic needle when he switches the circuit ' ON '? Justify your answer.
Asked by Shreeya Nemani
25th August 2018
2:51 PM
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ICSE X Physics Electromagnetism
how does no of times a coil rotated is affected by position of magnet
Asked by Badrinadh
27th August 2018
5:05 PM
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NEET1 NEET1 Physics
As we know magnetic field can not do work but if a metal coin is place near to magnetic it will be attracted towards magnet .how can explain it
Asked by ashutosharnold1998
19th September 2018
10:40 AM
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NEET1 NEET1 Physics
Please answer the following question with explanation
Asked by Deepak
4th October 2018
7:44 PM
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CBSE VIII Science
Three plotting compasses are placed close to a current carrying wire wrapped around an insulator as shown in fig.How many compass needles will change direction if the current through the wire is increased?
Asked by m.nilu
18th November 2018
10:27 AM
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CBSE X Physics Magnetic Effects of Electric Current
what happen when a magnet placed in space
Asked by chhedilal2443
14th December 2018
6:56 PM
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CBSE X Physics Magnetic Effects of Electric Current
Two coplanar concentric circular conductors made of same wire of same material and thickness connected to batteries of 20 V and 16V respectively and are of radii 5 cam and 10 cm respectively. If the resistance of inner coil is 4 ohm, find magnetic induction at centre O.
Asked by acv27joy
16th December 2018
6:36 PM
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CBSE X Physics Magnetic Effects of Electric Current
In what direction will a magnetic compass deflect if it is placed on the west side of a wire which is carrying current in a vertically upward direction?
Asked by KONDA VENKATA KHEERTHANA
20th December 2018
9:02 PM
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CBSE VI Science Fun with Magnets
what is magnet
Asked by bijendra_kumar80
30th December 2018
11:34 AM
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ICSE VI Physics
How can you make an electromagnet? What is the material used for the core of an electromagnet
Asked by sugrivyadav4302
31st December 2018
8:28 PM
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CBSE XII Science Physics Electromagnetic Induction
Why displacement current is induced in a coil by change in magnetic flux produced by another coil in vicinity?
Asked by kpbhake
10th January 2019
6:52 PM
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NEET NEET Physics Current Electricity
An electron is performing circular orbit of radius r and angular velocity omega. Find the magnetic field at centre.
Asked by shreyaskumar9035
14th January 2019
8:04 PM
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CBSE XII Science Physics Moving Charges and Magnetism
An electron and a proton having equal momenta enter a uniform magnetic field at right angles to the field lines. What will be the ratio of the radii of curvature of their trajectories?
Asked by Nareshthakur4321nct
17th January 2019
9:24 AM
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CBSE VII Science Electric Current and its Effects
which procedure will you follow to study magnetic field , if you are provided with paraffin oil, iron nail, bar magnet, battery, coil, conductor wire???
Asked by kpbadgujar2007
19th January 2019
8:48 PM
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CBSE XII Science Physics Magnetism and Matter
A MAGNETISED NEEDLE IN A UNIFORM MAGNETIC FIELD EXPERIENCES A TORQUE BUT NO NET FORCE. HOWEVER, AN IRON NAIL NEAR A BAR MAGNET EXPERIENCES A FORCE OF ATTRACTION IN ADDITION TO TORQUE. EXPLAIN
Asked by pardeepkumar2281
6th February 2019
8:21 PM
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CBSE XII Science Physics Magnetism and Matter
MUST EVERY MAGNETIC CONFIGURATION HAVE NORTH POLE AND SOUTH POLE AND CAN WE THINK OF MAGNETIC FIELD CONFIGURATION WITH THREE POLES ?
Asked by pardeepkumar2281
6th February 2019
8:24 PM
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CBSE XII Science Physics Magnetism and Matter
THE EARTH'S MAGNETIC FIELD AT THE EQUATOR IS APPOROXIMATELY 0.4G. ESTIMATE THE EARTH'S DIPOLE.
Asked by pardeepkumar2281
6th February 2019
8:26 PM
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CBSE VI Science Fun with Magnets
What is magnet
Asked by abhishek5101singh
12th February 2019
7:38 PM
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CBSE XII Science Physics
Parallel conductors
Asked by alanpeter9611
14th February 2019
5:21 PM
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CBSE X Science
what does it mean by like magnetic needle is placed in plane of paper .plane of paper eans how is it kept?
Asked by rakatesahil
15th February 2019
9:30 AM
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ICSE IX Physics Magnetism
Why does magentic north deviate from the true north
Asked by atupongen13
26th February 2019
9:32 AM
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CBSE XII Science Physics Magnetism and Matter
Find the magnitude and direction
Asked by alanpeter9611
1st March 2019
12:44 AM
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JEE Main Physics Magnetic Effects of Current and Magnetism
the expression for the potential energy of acurrent loop when it is placed in amagnetic field
Asked by anithaguthula666
29th March 2019
9:43 PM
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NEET NEET Physics
Please answer the following
Asked by ntg432000
30th March 2019
10:03 PM
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CBSE XII Science Physics Moving Charges and Magnetism
derivation and expression for the magnetic induction at point dou to strith current carring condoctor
Asked by bhurkeshiva
16th April 2019
11:06 PM
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JEE Main Physics Magnetic Effects of Current and Magnetism
Magnetic field created at the nucleus ?please explain the concept too
Asked by nipunverma59
23rd April 2019
8:31 PM
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NEET NEET Physics
battery is connected between point X and y on the circumference of uniform conducting ring of radius a and resistance R, . the smaller arc between X and y substance and angle 60 degree at the centre and magnetic induction at O due to current in the small arc is 0.1 tesla in outward direction. magnetic induction at O produce current in large arc between X and y is:- 1) 0.6T in the inward direction. 2)0.1T in the inward direction. 3)0.6T in the outward direction. 4)0.1 T in outward direction.
Asked by jhajuhi19
25th April 2019
6:21 PM
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NEET NEET Physics
The magnetic induction in air at a distance d from an isolated point pole of strength m unit will be
Asked by deepakpadhi90058
7th May 2019
2:44 PM
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CBSE XII Science Physics Magnetism and Matter
Why can't the south pole of the magnetic needle deflect in Ampere swimming Rule??
Asked by pratishapranisha153
21st May 2019
9:45 PM
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CBSE XII Science Physics Moving Charges and Magnetism
Hii
Asked by jain.pradeep
27th May 2019
6:54 PM
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CBSE XII Science Physics
What will be the answer for this question?
Asked by dineshchem108
29th May 2019
11:12 PM
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CBSE X Physics Magnetic Effects of Electric Current
Explain briefly about magnetic field
Asked by Ananyaaqua25
26th June 2019
10:49 PM
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CBSE X Physics
What is the difference between magnetic flux and magnetic field?
Asked by dr.sudhiguptajdmd74
11th July 2019
5:03 PM
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CBSE XII Science Physics
Two wires a and b carrying equal currbts of 10 ampere are placed parallel to each other with a separation of 4 cm between them as shown in fig. Find the magnetic field at P ,Q .
Asked by prakriti12oct
27th July 2019
12:27 PM
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CBSE X Physics
magnetic field lines dilate or contract laterally?
Asked by rath.ishan
12th August 2019
2:37 PM
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JEE Main Physics
Urgent... Plz plz solve this numerical attached below.
Asked by subhrajayanta64
25th August 2019
3:28 AM
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JEE Main Physics
Please Sir, solve the problem in the picture. What is Curl of H in case of magnetic dipole? Please clear my doubt.
Asked by subhrajayanta64
3rd September 2019
12:20 AM
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CBSE X Physics
What is difference in magnetic lines of solenoid and of bar magnet
Asked by vatsalm570
4th September 2019
3:14 PM
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JEE Main Physics
Sir please solve the mcq,provide steps...
Asked by subhrajayanta64
10th September 2019
4:37 AM
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NEET NEET Physics Magnetic Effects of Current and Magnetism
A toroid having inner and Outer diameter with 5 centimetre and 10 centimetre carrying a current of 10 ampere if it consists 20 turns find the magnetic field due to toroid
Asked by k_shubhankit16122001
12th September 2019
11:52 AM
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CBSE XII Science Physics
If it is in the north south direction the formula for tan b should be used and ans should be cube root 4 * 10^-2
Asked by prakriti12oct
6th October 2019
11:29 PM
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NEET NEET Physics
Please answer this
Asked by Prashant DIGHE
2nd November 2019
4:30 PM
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NEET NEET Physics
please answer this
Asked by Prashant DIGHE
5th December 2019
9:47 PM
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NEET NEET Physics
please answer this
Asked by Prashant DIGHE
6th December 2019
10:31 PM
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NEET NEET Physics
please answer this
Asked by Prashant DIGHE
6th December 2019
10:52 PM
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NEET NEET Physics
please answer this
Asked by Prashant DIGHE
6th December 2019
10:54 PM
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NEET NEET Physics
please answer this
Asked by Prashant DIGHE
6th December 2019
10:56 PM
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NEET NEET Physics
the magnetic field B at the centre of circular coil of radius r is π times that due to a long straight wire at a distance r from it, for equal currents. The adjoining diagram shown three cases in all cases the circular part has radius r and straight one are infinitely long. For the same current the field B at the centre P in cases 1,2,3 has the ratio
Asked by Prashant DIGHE
7th December 2019
10:15 PM
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NEET NEET Physics
please answer this
Asked by Prashant DIGHE
7th December 2019
10:18 PM
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NEET NEET Physics
please answer this
Asked by Prashant DIGHE
7th December 2019
10:22 PM
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CBSE X Physics
What will be the direction of magnetic field if current flows from east to west in a straight conductor
Asked by saradamahapatra9999
14th December 2019
3:02 PM
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CBSE XII Science Physics
Plz solve 5th sum
Asked by lovemaan5500
2nd January 2020
8:48 PM
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JEE Main Physics
a long wire with current I is bifurcated as shown in the figure dividing curent equally.The magnetic feild at point (0,a) is :
Asked by adityasrivastava703
5th January 2020
10:16 PM
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CBSE X Physics
Factors of magnetic field
Asked by anjalimonde82
12th January 2020
7:53 PM
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CBSE X Physics Magnetic Effects of Electric Current
What is the direction of the magnetic field?
Asked by bindu.jayant
15th January 2020
10:46 AM
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CBSE XII Science Physics
A closed loop of magnetic field is produced by a changing electric field. Are electric field and time varing electric fiels necessarily non zero at all points on tte loop and in the area enclosed by the loop?
Asked by Himanshukesarwani97
20th January 2020
10:22 PM
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CBSE X Physics Magnetic Effects of Electric Current
Why can't magnetic field lines around a bar magnet straight? Any specific reason why they always start from north pole and end at the south pole? Why should they ever form closed loops? Can't they just go on as straight lines without converging?
Asked by saisindhumanasai
21st January 2020
9:24 AM
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CBSE X Physics Magnetic Effects of Electric Current
Describe an activity to 1) demonstrate the pattern of magnetic field lines around a straight conductor carrying current and 2) find the direction of the magnetic field produced for a given direction of current in a conductor.
Asked by subbukum
26th January 2020
10:26 AM
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CBSE X Physics Magnetic Effects of Electric Current
Describe an activity to 1) demonstrate the pattern of magnetic field lines around a straight conductor carrying current and 2) find the direction of the magnetic field produced for a given direction of current in a conductor. Answer has not been uploaded for this question even though it says that it has been answered
Asked by subbukum
26th January 2020
2:04 PM
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JEE Main Physics
what is magnetic field between plates
Asked by ashutosharnold1998
3rd February 2020
4:24 PM
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CBSE X Physics Magnetic Effects of Electric Current
List two factors on which the strength of the magnetic field lines produced by a solenoid depends.
Asked by subbukum
4th February 2020
2:24 PM
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CBSE VII Science Electric Current and its Effects
What happens when we increase the number of turns in a solenoid?
Asked by kaur234harpreet
5th February 2020
6:52 PM
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CBSE X Physics Magnetic Effects of Electric Current
name the device in which a current carrying conductor and magnetic field are used
Asked by dharmrajsinhparmar79
14th February 2020
9:41 AM
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ICSE VII Physics Electricity and Magnetism
Why a north pole iron rod repel to another iron rod of north pole?
Asked by devipanda.tupu
19th February 2020
11:34 PM
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ICSE VIII Physics Electricity and Magnetism
Name the device and it's use which is based on the above phenomenon. Earths magnetic device
Asked by Vidhatri.urs
22nd February 2020
10:03 PM
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CBSE XII Science Physics
Ques 9 plz
Asked by lovemaan5500
22nd February 2020
10:14 PM
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CBSE XII Science Physics
8th ques
Asked by lovemaan5500
22nd February 2020
10:16 PM
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CBSE X Physics
Will magnetic field lines intersect when two unlike poles of a magnet attract?
Asked by binduanand661
28th February 2020
3:34 PM
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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
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NEET NEET Physics
please answer this
Asked by Prashant DIGHE
10th April 2020
9:40 PM
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CBSE XII Science Physics Magnetism and Matter
pls solve
Asked by mufeedatvp2000
19th April 2020
12:01 PM
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CBSE X Physics Magnetic Effects of Electric Current
In Fleming's left hand rule which finger show the direction of magnetic field
Asked by rockarkk32
26th April 2020
7:18 PM
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JEE Main Physics Magnetic Effects of Current and Magnetism
S is the surface of lump of magnetic material a)Lines of B are necessarily continuous across S b)Some lines of B must be discontinuous across S c)Lines of H are necessarily continuous across S d)Lines of H cannot all be continuous across S
Asked by bhuvanshetty1340
2nd May 2020
7:18 PM
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CBSE XII Science Physics Moving Charges and Magnetism
A current-carrying circular loop lies on a smooth horizontal plane. A) Can a uniform magnetic field be set up in such a manner that the loop turns around itself (i.e., turns about the vertical axis). (b) A current-carrying circular loop is located in a uniform external magnetic field. If the loop is free to turn, what is its orientation of stable equilibrium? Show that in this orientation, the flux of the total field (external field + field produced by the loop) is maximum. (c) A loop of irregular shape carrying current is located in an external magnetic field. If the wire is flexible, why does it change to a circular shape?
Asked by manishjs222
5th May 2020
3:52 PM
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ICSE VI Physics Magnetism
what is magnet
Asked by swamigitesh9531.6sdatl
11th May 2020
1:04 PM
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CBSE XII Science Physics
The question is uploaded image
Asked by anjurtpp
21st May 2020
12:01 PM
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ICSE VII Physics Electricity and Magnetism
Why is the property of magnet that like pole repel
Asked by dhimantsinhsolanki4683.7sdatl
22nd May 2020
11:48 AM
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CBSE X Physics Magnetic Effects of Electric Current
Explain the activity to show the end is produced along the straight current carrying conductor
Asked by kavithakavitha42724
27th May 2020
1:19 PM
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