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The equation of electromotive forces for...

The equation of electromotive forces for an electric circuit containing resistance and self inductance is `E=R \ i+L(d i)/(dt),` where `E` is the electromotive force given to the circuit, `R`, the resistance and `L`, the coefficient of induction. Find the current `i` at time t when (i) `E=0\ ` (ii) `E=a` ,non-zero constant.

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