Does the current in an A.C. circuit lag, lead or remain in phase with the voltages of frequency v applied to the circuit when (i) `v = v_(r)` (ii) `v lt v_(r)` (iii) `v gt v_(r)` where `v_(r)` is the resonance frequency.

An alternating voltage of frequency f is applied across a series LCR circuit.Le f_(r) be the resonance frequency for the circuit.Will the current in the circuit lag, lead or remain in phase with the applied voltage when (i) f gt f_(r) ,(ii) f lt f_(r) ? Explain your answer in each case.

An alternating voltage of frequency f is applied across a series LCR circuit.Le f_(r) be the resonance frequency for the circuit.Will the current in the circuit lag, lead or remain in phase with the applied voltage when (i) f gt f_(r) ,(ii) f lt f_(r) ? Explain your answer in each case.

In an AC circuit as shown in the figure, the source is of r.m.s voltage 200 V and variable frequency. At resonance, the circuit

In an AC circuit as shown in the figure, the source is of r.m.s voltage 200 V and variable frequency. At resonance, the circuit

In an LCR series circuit the voltages across R,L and C at resonance are 40 V and 60V respectively the applied voltage is .

Prove V_(r.m.s)= V_0/sqrt2 in an a.c. circuit. Where V_0 = the peak value of voltage.

In an a.c. circuit, with phase voltage V and current I, the power dissipated is

In an a.c circuit with phase voltage V and current I, the power dissipated is