An LCR series circuit with `L = 100 mH, C = 100 muF, R = 120 Omega` is connected to an `AC` source of `emf epsilon = (30 V) sin (100s^(-1))t`. Find the impedane, the peak current and the resonant frequency of the circuit.

An LCR series circuit contains L = 8 H, C = 0.5 muF and R =100 Omega The resonant frequency of the circuit is .

An LCR circuit has L = 10 mH, R = 3 Omega and C = 1 mu F and is connected in series to a source of (20 sin omega t) volt. Calculate the current amplitude at a frequency 20 % lower than the resonance frequency of the circuit.

Power dissipated in an L-C-R series circuit connected to an AC source of emf epsilon is

A series L-C-R circuit with R = 44 Omega, C = 8 muF and L = 50 H is connected to a variable frequency 220 V ac suppy. Calculate angular frequency, impedance and current at resonance condition.

A series LCR circuit with R = 1 k Omega , L=1.0 mH C= 0.001 muF is connected to a sinusoidal voltage of peak value 200sqrt(2) V . When the frequency of the supply equals the natural frequency of the circuit what is the average power transferred to the circuit in one cycle .

In a series RC circuit with an AC source, R = 300 Omega, C = 25 muF, epsilon_0 50 V and v = 50/((Pi) Hz . Find the peak current and the average power dissipated in the circuit.

In an LCR series combination R= 400 Omega L =100 mH and C = 1 muF . This combination is connected to a 25 sin 2000 t volt voltage source . Find (i) the impedance of the circuit . (ii) the peak value of the ciruit current .

A series LCR circuit with L = 4.0 h, C = 100 mu F and R = 60 Omega is connected to a varialbe frequency 240 V source. Calcalate (i) angular frequency of the source which drives the circuit in resonace, (ii) current at the resonating frequency, (iii) rms potential drop across the inductro at resonance.

A 25 W lamp is connected to an ac source of peak emf 100 V. Compute the rms current in the lamp.