An inductor coil joined to a 12 V battery draws a steady current of 12 A. This coil is connected to a capacitor and ac source of rms voltage 12 V in series. What will be the rms current, if the current in the circuit is in phase with the emf?

12 A

The correct answer is Option (1) → 12 A

The inductive reactance $(X_L)$ is,

$X_L=\frac{V}{I}=\frac{12V}{12A}=1Ω$

Using Ohm's law,

$I_{rms}=\frac{V_{rms}}{R}=\frac{12V}{1Ω}=12A$