A circuit consists of a capacitor with capacitance `C` and a coil with active resistance `R` and inductance `L` connected in parallel. Find the impedane of the circuit at frequency `omega` of alternating voltage.

An alternating current of frequency omega=314s^(-1) is fed to a circuit consisting of a capacitor of capacitance C=73 muF and an active resistance R=100 Omega connected in parallel. Find the impedance of the circuit.

A series circuit consisting of a capacitor with capacitance C=22 mu F and a coil with active resistance R=20 Omega and iniductance L=0.35 H is connected to a source of alternating voltage with amplitude V_(m)=180 V and frequency omega=314 s^(-1) . Find : (a) the current amplitude in the circuit, (b) the phase difference between the current and the external voltage , (c) the amplitudes of voltage across the capacitor and the coil.

A capacitor with capacitance C and a coil with active resistance R and inductance L are connected in series to a source of sinusoidal voltage of frequency omega . Find the phase difference between the current fed to the circuit and the source voltage.

An oscillating circuit consist of a capacitor with capacitance C=4.0 mu F and a coil with inductance L=2.0 mu H and active resistance R=10 Omega . Find the ration of the energy of the coil's magnetic field to that of the capacitor's electric field at the moment when the current has the maximum value .

A certain oscillating circuit consits of a capacitor with capacitance C , a coil with inductance L and active resistance R , and a switch . When the swith was disconnected, the capacitor was charged, then the switch was closed and oscillations set in. Find the ratio of the voltage across the capacitor to its peak value at the moment immediatel after closing the switch.

A series circuit consisting of a capacitor X_(C) =80 Omega and a coil with active resistance R =300 Omega and inductance X_(L) =40 omega is connected to a source of alternating voltage with amplitude V_(0) =200 V Find (a) the current amplitude in the circuit (b) the phase difference between the current and voltage (c) the amplitudes of voltage across the capacitor and the coli .

A capacitor of capacitance 100mu and a coil of resistance 50Omega and inductance 0:5 henry are connected in series with a source of voltage 110V and frequency 50 hertz. Calculate the current in the circuit.