An ac source of 200 V, 50 Hz is connected in series to a capacitor with a 20 V-5W. Lamp. Determine the capacitance of the capacitor needed to light the lamp with maximum brightness.

An a.c. source of 200 V, 50 Hz is connected across a 400 Omega resistor and capacitor of 25pF in series. Calculate reactance

A lamp is connected is series with a a capacitor and an AC source, what happens if the capacity of the capacitor is reduced ?

A 20 V - 5 W lamp is to run on 200 V- 50 Hz a.c. mains. Find the capacitance of a capacitor required to run the lamp.

An a.c. source of 200 V, 50Hz is connected across a 300Omega resistor and capacitor of 25/pi muF in series. Calculate (a) reactance: impedance

A 20 watt, 50 V lamp is connected in series to a.c. mains of 250 V, 50 Hz. Calculate to value of capacitor to run the lamp.

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.

A 60 V -10W lamp is to be run on AC supply of 100 V -50 cycle in series with a suitable capacitor .Find the capactiance of the capacitor that be needed for the purpose.

A capacitor, resistor of 5 Omega , and an inductor of 50 mH are in series with an a.c. source marked 100 V, 50 Hz . It is found that voltage is in phase with the current. Calculate the capacitance of the capacitor and the impedance of the circuit.

A 50 mu F capacitor is connected to an a.c. source of frequency 50 Hz. Caclculate the capacitive reactance of the capacitor.

A capacitor and resistor of 12 Omega are connected in series with an AC supply 100 V, 50 Hz . Calculate the capacitance of the capacitor if power factor of the RC circuit is 0.8.