Questions
A magnet of magnetic moment M is rotated through in a magnetic field H. The work done will be
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a
MH
b
2MH
c
2πMH
d
Zero
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Correct option is D
W=MB(cosθ1-cosθ2); θ1=0o and θ2=360o⇒w=0Similar Questions
A magnet of magnetic moment M is situated with its axis along the direction of a magnetic field of strength B. The work done in rotating it by an angle of will be
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