An LCR series circuit with resistance is connected to an AC source of and angular…

PHYSICS · Subjective · A Level · Physics · Fields and their consequences · Fields and their consequences

Problem

An LCR series circuit with

100\,\Omega

resistance is connected to an AC source of

200\text{ V}

and angular frequency

300\text{ rad s}^{-1}

. When only the capacitance is removed, the current lags behind the voltage by

60^\circ

. When only the inductance is removed, the current leads the voltage by

60^\circ

. Calculate the current and the power dissipated in the LCR circuit.