Force on a Straight Current Carrying Conductor Placed in a Magnetic Field
Magnetic flux...
Question
Magnetic flux ϕ (in weber) linked with a closed circuit of resistance 10Ω varies with time t (in second) as ϕ=5t2−4t+1. The induced electromotive force in the circuit at t = 0.2 second is
A
0.4 V
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B
-0.4 V
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C
-2.0 V
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D
2.0 V
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