A source of alternating emf of 220 V-50 Hz is connected in series with a resitance of `200 Omega` an inductance of 100 mH and a capacitance of `30 mu F` does the current lead or lag the voltage and by what angle ?

An a.c. source of 220 V 50 Hz is connected in series with a 50 Omega resistance 150 mu F capacitors and 0.5 H inductor in series. Calculate the current through the combination.

An a.c. source of 220 V, 50 Hz is connected to a series combination of 50 Omega resistor, 20 micro farad capacitor and 10 mH inductor respectively. Calculate the current through the combination.

An alternating voltage of frequency 50 Hz is fed to a circuit having a resistance of 628 Omega and inductance 2H. Phase angle between current and voltage is

Five cells each of internal resistance 0.2 Omega and e.m.f. 2V are connected in series with a resistance of 4 Omega . The current through the external resistance is :

A coil of resistance 100Omega , an inductor of 0.5 H and a capacitor of 15muF are connected in series with a 200V-50Hz AC source. Calculate the current in the circuit.

A dc source of 30 V is connected across 2 resistores of 200 Omega each connected in series. A voltmeter of resistance 200 Omega is connected across a resistor. It reads

A sinusoidal voltage of peak value 285 V is applied to a series LCR circuit in which resistor of resistance 5 W, pure Inductor of Inductance 28.5 mH and capacitor of capacitance 800 mu R are connected. Calculate the impedance, current and power dissipated at the resonance.