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Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average

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asked Jan 5, 2018 in Physics by sforrest072 (157,439 points) ● 60 ● 409 ● 932

Current in a circuit falls from 5.0 A to 0.0 A in 0.1 s. If an average emf of 200 V induced, give an estimate of the self-inductance of the circuit.

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answered Jan 5, 2018 by mdsamim (213,225 points) ● 5 ● 10 ● 15
selected Jan 5, 2018 by sforrest072
 
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For self-inductance (L) of the coil, we have the relation for average emf as:

Hence, the self induction of the coil is 4 H.

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