A bar magnet of length 10 cm and pole strength 2 A m makes an angle 60 o with a uniform magnetic field of induction 50 T . The couple acting on it is

Question

A bar magnet of length 10 cm and pole strength 2 A m makes an angle 60 o with a uniform magnetic field of induction 50 T . The couple acting on it is, 5 3 N m, 3 N m, 10 3 N m, 20 3 N m

MARKS App · Accepted Answer

C = 2 l m B sin ⁡ θ = 1 0 - 1 × 2 × 5 0 × 3 2 = 5 3 N m

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