An arc lamp consumes `10 A` at `40 V`. Calculate the power factor when it is connected with a suitable value of choke coil required to run the arc lamp on `AC` mains of `200 V ("rms")` and `50 Hz`.

An AC flourescent lamp needs 1-A currect at 100 V Calculate the inducatance of the choke required to run the lamp on a 50 Hz -220 V supply.

A 20 watt, 50 volt filament is connected in series to an a.c. mains of 250 volt - 50 hertz. Calculate the value of the capacitor required to run the lamp.

A 20 watt electric lamp can be operated at a 50 V DC supply . Calculate the value of capacitance of the capacitor required to run the given lamp at 220 V , 50 Hz AC supply .

A 40 micro F capacitor is connected to a 200V, 50 Hz ac supply. Rms value of current in circuit is nearly

A 40 micro F capacitor is connected to a 200V, 50 Hz ac supply. Rms value of current in circuit is nearly

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.

When an ideal choke is connected to an ac source of 100V and 50Hz, a current of 8 A flows through the circuit, A current of 10 A flows throught the circuit when a pure resistor is connected instead of the choke coil. IF the two are connected in series with an ac supply of 100 V and 40 Hz, then the current in the circuit is

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