List of top Electrical Engineering Questions on Electric circuits and fields asked in AP PGECET

A series RL circuit has $V = 10\text{ V}$, $R = 5 \ \Omega$, $L = 2\text{ H}$. With $i(t) = (V/R)(1 - e^{-t/\tau})$, $\tau = L/R$. Find $i$ at $t = 0.5\text{ s}$.

A series RL circuit consists of a resistor $R=10 \ \Omega$ and an inductor $L=1\text{ H}$, connected to a DC voltage source of $V=20\text{ V}$. The switch is closed at $t=0$, and the initial current is zero. Determine the expression for the current $i(t)$ through the inductor for $t>0$, assuming ideal components.