Question

Match the following two columns for a series AC circuit.

Column $\text{I}$	Column $\text{II}$
$a.$ Only $C$ in the circuit $b.$ Only $L$ in the circuit $c.$ Only $R$ in the circuit	$p.$ Current will lead $q.$ Voltage will lead $r.$ $\varphi ={90}^{\circ }$ $s.$ $\varphi =0^{\circ }$

$\varphi$ is the phase difference between current and voltage.

• A. $a\to p,r;b\to q,r;c\to s$
• B. $a\to p;b\to q;c\to s$
• C. $a\to p,r;b\to q;c\to s$
• D. $a\to p;b\to q,r;c\to s$

Answer 1

The correct option is A $a\to p,r;b\to q,r;c\to s$

We know that -

$\left(i\right)$ In pure capacitive circuit, current leads ahead the voltage by $\varphi ={90}^{\circ }$

$\left(ii\right)$ In pure inductive circuit, voltage leads ahead the current by $\varphi ={90}^{\circ }$

$\left(iii\right)$ In pure resistive circuit, current and voltage are in the same phase $i.e.\varphi =0^{\circ }$