ElectroMagnetic InductionHard

Question

A square loop of area 2.5 × 10-3m2 and having 100 turns with a total resistance of 100Ω is moved out of a uniform magnetic field of 0.40 T in 1 sec with a constant speed. Then work done, in pulling the loop is -
                                                

Options

A.zero
B.1 mJ
C.1 μJ
D.0.1 mJ

Solution

W = Fl = N(IlB) l = Nl2B =
∵ t = ∴ W = = 0.1 mJ

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