Questions
The magnetic moment of a magnet of length 10 cm and pole strength 4.0 Am will be
a
0.4 Am2
b
1.6 Am2
c
20 Am2
d
8.0 Am2
detailed solution
Correct option is A
M=mL=4 x 10 x 10-2=0.4 Am2Talk to our academic expert!
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A bar magnet of magnetic moment is placed in a uniform magnetic induction field of . If each pole of the magnet experiences a force of . The length of the magnet is
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