Question

An inductor of $0.5 mH$, a capacitor of $20 \mu F$ and resistance of $20 \Omega$ are connected in series with a $220 V$ ac source If the current is in phase with the emf, the amplitude of current of the circuit is $\sqrt{x}$ A The value of $x$ is -

Answer 1

The correct answer is 242.
XL​=XC​
So, Z=R=20Ω
irms​=20220​=11
imax​=112​=242​