An inductor of unknown value, a capacitor of `100 mu F` and a resistor of 10 ohm are conneted in series to a 200 V, 50 Hz a.c. source It is found that power factor of the circuit is unity. Calculate inductance of the inductor and current amplitude.

A choke of 0.5 H, a capacitor of 15 mu F and resistance of 100 ohm are connected in series across 200 V, 50 Hz main. Find current in the circuit and power factor of the circuit.

An inductor 200 mH, capacitor 500mu F and resistor 10 Omega are connected in series with a 100 V variable frequency ac source. What is the frequency at which the power factor of the circuit is unity?

A 0.2 k Omega resistor and 15 mu F capacitor are connected in series to a 220 V, 50 Hz ac source. The impadance of the circuit is

A 31.4Omega resistor and 0.1H inductor are connected in series to a 200V, 50Hz ac source. Calculate (i) the current in the circuit

An inductor L, capacitor of 20 mu F and a resistor of 10 Omega are connected in series with 220 V, 50 Hz a.c. supply. If current is in phase with the voltage, calculate the inductance. What is the value of current in the circuit ?

An inductance L , a capacitor of 20mu F and a resistor of 10Omega are connected in series with an AC source of frequency 50 Hz . If the current is in phase with the voltage, then the inductance of the inductor is

An inductor 200 mH, capactior 500 mu F , resistor 10 ohm are connected in series with a 100 V, varialbe frequency a.c. source. Calculate (i) frequency at which power factor of the circuit is unity (ii) current amplitude at this frequency (iii) Q factor.