A coil having 500 square loops each of side 10 cm is placed normal to a magnetic field which increases at the rate of 1 Wb/m². The induced e.m.f. is(a) 0.1 V(b) 5.0 V(c) 0.5 V(d) 1.0 V
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The question is based on Faraday's and Lenz's electromagnetic induction
Loops of coil = N= 500 (Given)
Side = L= 10cm
Ф= NB.A = nBAcosθ
where θ = 0°
Therefore,
|e| =N(ΔB/Δt).Acosθ
=500×1×(10×10 raise to the power −2)²cos0
=5V.
Hence the induced e.m.f will be 5.0V
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