A series LCR circuit is connected to a source having voltage v=v_(m) sin omegat.Derive the expression for the instantaneous current I and its phase relationship to the applied voltage. Obtain the condition for resonance to occur.Define 'power factor'.State the conditions under which it is minimum.

An LCR-circuit is connected to a source of a.c. current under resonant condition. The phase difference between the applied voltage and the current it the circuit is

A voltage V = V_0 sinomegat is applied to a series LCR-circuit. Derive the expression for the average power dissipated over a cycle. Under what condition no power is dissipated even though the current flows through the circuit.

A voltage V = V_0 sinomegat is applied to a series LCR-circuit. Derive the expression for the average power dissipated over a cycle. Under what condition maximum power is dissipated in the circuit?

In a series LCR circuit the voltage across an inductor, a capacitor and a resistor are 20V, 20V and 40V respectively. What is the phase difference between the applied voltage and the current in the circuit?

In a series LCR circuit the voltage across an inductor, a capacitor and a resistor are 30V, 30V and 60V respectively. What is the phase difference between the applied voltage and current in the circuit?

When a circuit element X is conneted across a.c. sourceof emf 220sqrt2V , a current sqrt2 A flows through it and this current is in phase with applied voltage. When another element Y is connected across same a.c. source, the same current flows in the circuit, but it leads the voltages by pi//2. Find current that flows in the circuit when series combination of X and Y is connected acorss same a.c. voltage.

When a circuit element X is conneted across a.c. sourceof emf 220sqrt2V , a current sqrt2 A flows through it and this current is in phase with applied voltage. When another element Y is connected across same a.c. source, the same current flows in the circuit, but it leads the voltages by pi//2. Plot a graph showing variation of net impedance of series combination of X and Y as a function of angular frequency of applied voltage.

When a circuit element X is conneted across a.c. sourceof emf 220sqrt2V , a current sqrt2 A flows through it and this current is in phase with applied voltage. When another element Y is connected across same a.c. source, the same current flows in the circuit, but it leads the voltages by pi//2. Name the circuit elements X and Y.

The given circuit diagram shows a series LCR circuit connected to a variable frequency 230 V source. Obtain the impedacne of the circuit and the amplitude of current at resonating frequency.