Question

The current through an indicator of $1H$ is given by $i=3t\sin t$. Find the voltage across the inductor.

Answer 1

$\left|e\right|=|L.\frac{\Delta i}{\Delta t}|or\left|L\frac{di}{dt}\right|$
Here, $L=1H$
And, $\frac{di}{dt}=3[\sin t+t\cos t]$$=3(t\cos t+\sin t)$