There is a current of 10 milli ampere through an ideal choke coil when connected to 220 voltt, 50 hertz, supply. The power consumed is

A 220 volt, 1000 watt bulb is connected across a 110 volt mains supply. The power consumed will be

Find the maximum value of current when inductance of two henry is connected to 150 volt, 50 cycle supply.

A circuit takes a current of 3 A at a power factor of 0.6 lagging when connected. to a 115 V- 50 Hz supply. Another circuit takes a current of 5 A at a power factor of 0.707 leading when connected to the same supply. If the two circuits are connected in series across a 230 V ,50 Hz supply, then calculate (a) the current (b) the power consumed and (c) the power factor

An are lamp requires a direct current of 10A at 80V to function. If it is connected to a 220V(rms), 50 Hz AC supply, the series inductor needed for it to work is close to:

An are lamp requires a direct current of 10A at 80V to function. If it is connected to a 220V(rms), 50 Hz AC supply, the series inductor needed for it to work is close to:

An are lamp requires a direct current of 10A at 80V to function. If it is connected to a 220V(rms), 50 Hz AC supply, the series inductor needed for it to work is close to:

Calculate the current flowing through a heater rated at 2 kW when connected to a 300V d.c. supply.

Bulb A and bulb B consume power 100 W and 60 W respectively when they are connected to a 220 V supply individually. The total power consumed by the bulbs if they are placed in series and then connected with the same supply is _________W.

If bulb rating is 100 walt and 220 V then determine (a) Resistance of filament (b) Current through filament (c ) If bulb operate at 110 volt power supply then find consumed by bulb.

A coil has L=0.04H and R=12Omega . When it is connected to 220V, 50Hz supply the current flowing through the coil, in ampere is