A planar coil having 12 turns carries 15 A current. The coil is oriented with respect to the uniform magnetic field B=0.2Î T such that its directed area is A= 0.04Îm². The potential energy of the coil in the given orientation is

Options

(a) 0
(b) (+0.72 J)
(c) (+1.44 J)
(d) (-1.44 J)

Correct Answer:

(-1.44 J)

Explanation:

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