Categories > emi > Faraday's Law and Lenz's Law > Magnetic flux $\varphi$ (in weber) linked with a closed circuit of resistance 10 ohm varies with time t (in seconds) as $\varphi = 5{t^2} - 4t + 1$. The induced electromotive force in the circuit at t = 0.2 sec. is

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Question: Magnetic flux $\varphi$ (in weber) linked with a closed circuit of resistance 10 ohm varies with time t (in seconds) as $\varphi = 5{t^2} - 4t + 1$. The induced electromotive force in the circuit at t = 0.2 sec. is


1) 0.4 volts
2) – 0.4 volts
3) – 2.0 volts
4) 2.0 volts
Solution: Explanation: No Explanation
Faraday's Law and Lenz's Law

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