A series LCR circuit is connected to an ac source of variable frequency. When the frequency is increased continuously, starting from a small value, the power factor

A series LCR circuit is connected to an a.c. source of variable frequency. Drow a suitable phasor diagram deduce the expressions for the amplitude of the current and phase angle.

For an LCR series circuit with an ac source of angular frequency omega .

A variable frequency AC source is connected to a capacitor. Then on increasing the frequency

In a series LCR circuit resonance of frequency is the half of the frequency of source.The nature of the circuit is

In a series LCR circuit resonance of frequency is the half of the frequency of source.The nature of the circuit is

In a series LCR circuit across an a.c source of variable frequency, obtain the expression for its impedance and draw a plot showing its variation with frequency of the a.c. source.