In a coil of area 10 cm 2 and 10 turns, magnetic field is directed perpendicular to the plane and is changing at a rate of 1 0 4 T s - 1 . The resistance of the coil is 20 Ω . The current in the coil will be

Question

In a coil of area 10 cm 2 and 10 turns, magnetic field is directed perpendicular to the plane and is changing at a rate of 1 0 4 T s - 1 . The resistance of the coil is 20 Ω . The current in the coil will be, 0.5 A, 5 A, 50 A, 5 × 1 0 8 A

MARKS App · Accepted Answer

Induced current is, i = 1 R N dϕ dt = 1 R NA dB dt i = 1 20 10 10 × 10 - 4 10 4 = 5 A i = 5 A

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