Physics, asked by NarmadhaMaheswari, 5 months ago

bar magnet is placed intially parallel to the magnetic field,the work done in rotating the magnet through 90°
a)zero
b)PmB
c)-PmB
d)2 PmB

Answers

Answered by radhchaudhari0099

1

Answer:

I think the answer is d 2 PmB

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