A house hold circuit has a fuse of 5 A rating. Calculate the maximum number of bulbs rated 60 W —220 V each, which can be connected in- this household circuit?

A household circuit has a fuse 5A rating. Calculate the maximum number of bulbs rated 60 W-220.V each, which can be connected in this household circuit?

Show that the equivalent resistance in parallel combination is less than each of the resistances. The main Voltage for a house is 220V, the fuse is of 5A, What Will be the maximum number of 60Watt bulb that can be switched or together?

A light bulb is rated at 100 W for a 220V ac supply. Calculate the resistance of the bulb.

A light bulb is rated 100 W for 220 V ac supply of 50 Hz. Calculate the resistance of the bulb ,

A circuit draws 280 W from a 110V, 60Hz ac line. The current lags the voltage and the power factor is 0.5. Find the value of a capacitance which can be connected in series to make the power factor of the circuit unity.

The main meter of a house is marked 10 A-220V. How many 60 W electric lamps can used safely in this line ?

The resistance of an electrical appliance is 200 Omega and it can withstand a maximum current of 1A. To operate the appliance on a dc source of 220 V what minimum resistance should be connected in series with it?

A circuit draws a power of 550 W from a 220V-50 Hz source. The power factor of the circuit is 0.8. A current in the circuit lags behind the voltage. Show that a capacitor of about 1/(42pi)times10^-2F will have to be connected in the circuit to bring its power factor to unity.

A few day cells have an emf of 1.5V and an internal resistance of 0.5 Omega each. How many of these cells connected in series would produce a current of 0.6A through a resistance of 10 Omega in the external circuit.

A light bulb is rated 100 W for 220 V ac supply of 50 Hz. Calculate the rms current throught the bulb