Find the capacity of a condenser to run a 30 Volt, 10 watt lamp when connected in series with an alternating e.m.f. of 220 volt and frequency `50 c//s`

A coil has an inductance of 0.7 H and is joined in series with a resistance of 220 ohm. Find the wattless component of current in the circuit, when an alternating e.m.f. of 220 V at a frequency of 50 Hz is supplied to it.

A coil has an inductance 0.7 H and is joined in series with a resistance of 220 ohm. Find the wattles component of the current in the circuit, when an alternating e.m.f. of 220 V at a frequency of 50 hz is supplied to it.

A 25 watt, 220 volt bulb and a 100 watt, 220 volt bulb are connected in series across 440 volt line

Condensers of capacities 5 F and 10 F are connected in parallel in a circuit with a cell of e.m.f. 2V. What should be the capacity of the condenser to be connected in series with parallel combination of the condensers to get 1 C charge to flow in the circuit ?

Two electric lamps each of 100watt 220V are connected in series to a supply of 220Volt. The power consumed would be

Three condensers having capacities of 10 mu F , 20 mu F and 30 mu F respectively are connected in series and a potential difference of 220 volt is applied across the combination. Find the resultant capacity the charge on each plate and the potential difference across each condenser.