NEET2013Physics-Magnetism
NEET 2013 Physics Magnetic Forces MCQ Question
Type: MCQ-conceptual-Medium-Class 12
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:
A
MB/F
B
BF/M
C
MF/B
D
F/MB
Correct Answer
Option A
Detailed Explanation
The force on each pole is given by F = MB/l, where l is the length of the magnet. Rearranging gives l = MB/F.
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