Q7.18 (a) A circuit containing a inductor and a capacitor in series is connected to a , supply. The resistance of the circuit is negligible. Obtain the current amplitude and rms values.
The inductance of the inductor
The capacitance of the capacitor
Frequency of voltage supply .
Here, we have
Current in the circuit will be
The negative sign is just a matter of the direction of current.so,
But, since the value of R is zero(since our circuit have only L and C)
RMS value of this current: