Question

If we apply a sinusoidal input to RL circuit, the current in the circuit is __________ and the voltage across the elements is _______________

(a) square, square

(b) square, sinusoid

(c) sinusoid, square

(d) sinusoid, sinusoid

The question was posed to me by my school principal while I was bunking the class.

The origin of the question is Series Circuits in chapter Complex Impedence of Network Theory

Answer 1

Correct choice is (d) sinusoid, sinusoid

The explanation: If we apply a sinusoidal input to RL circuit, the current in the circuit is square and the voltage across the elements is sinusoid. In the analysis of the RL series circuit, we can find the impedance, current, phase angle and voltage drops.