Q. 10 : Flux passes through coil changes from 2 x 10 Wb to 3 x 103 Wb during 25 s. The induced e.m.f. is (CET-2003) (а) 0.02 mV (b) 0.03 mV (c) 0.05 mV (d) 0.04 mV
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Q: Flux passes through coil changes from 2 × 10³ Wb to 3 × 10³ Wb during 25 s. The induced e.m.f. is…
A: Given data is, ϕ1=2×10-3wbϕ2=3×10-3 wbdϕ=ϕ2-ϕ1=3-2×10-3 wbdϕ=1×10-3 wb Time is 25 sec
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