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 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 .

An electric lamp which runs at 40V and consumes 10A current is connected to AC mains at 100V, 50Hz supply. Calculate the inductance of the required choke for lamp to glow at full brightness.

A 60 V - 10 W electric lamp is to be run on 100 V - 60 Hz mains. Calculate the inductance of the choke coil required. If a resistor is to be used in place of choke coil to achieve the same result, calculate its value.

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.

A bulb is connected to a 100 V DC supply . It is found that the current of 5 A flows in the circuit. The same bulb is connected to an AC supply at 120 V . The frequency of source is 50 Hz. Calculate the inductance of coil required so that the lamp glows in an AC circuit too.

An eletric lamp which runs 100 V d.c and 10-A currect is connected to 200 V ,50 cycle AC mains .Calcualate the inducatance of the choke required.

A 80 V - 800 W heater is to be operated on a 100 V - 50 Hz a.c. supply. Calculate the inductance of the choke required.

A 50 V-10 W electric lamp is connected across an AC source of 100 V - 50 Hz. (i) Find the inductance of the choke required . (ii) If a resistoer is used in place of the choke coil to obtain the same result find its value.

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 electric lamp which runs at 80 volt d.c. and consumes 10 ampere is connected to 100 volt, 50 Hz a.c. mains. Calculate the inductance of the choke required.