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Electricity and Magnetism
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Magnetism and Matter
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Magnetism and Matter
Easy Questions
Moderate Questions
Electricity and Magnetism
Current Electricity
Moving Charges and Magnetism
Magnetism and Matter
Electromagnetic Induction
Alternating Current
Electromagnetic Waves
A bar magnet of magnetic moment M is placed at right angles to a magnetic induction B. If a force F is experienced by each pole of the magnet, the length of the magnet will be
F/MB
MB/F
BF/M
MF/B
Correct Option:
B
FL = MB (= Torque) ⇒ L =
MB
F
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