Two bulbs of 500 watt and 300 watt work on 200 volt r.m.s. the ratio of their resistances will be –

Two bulbs of 500 watt and 200 watt are manufactured to operate on 220 volt line. The ratio of heat produced in 500 W and 200 W , in two cases, when firstly they are joined in parallel and secondly in series, will be

Two bulbs of 500 watt and 200 watt are manufactured to operate on 220 volt line. The ratio of heat produced in 500 W and 200 W , in two cases, when firstly they are joined in parallel and secondly in series, will be

Two bulbs 25 watt-100 volt and 100 watt-200 volt are connected in the circuit as shown in figure choose the correct answer(s).

Two bulbs 25 watt-100 volt and 100 watt-200 volt are connected in the circuit as shown in figure choose the correct answer(s).

An electric bulb rated for 500 watt at 100 volt is connected to a 200 volt supply line . How much resistance has to be joined in seresies with the bulb so that , the bulb delivers 500 watt ?

Two bulbs are marked 200 watt - 250 volt and 500 watt - 250 volt. Compare the heat generated in the two bulbs per second when the bulbs are connected in series.

Two bulbs of 100 W and 200 W working at 220 volt are joined in series with 220 volt supply. Total power consumed will be approximately.

Two bulbs one of 200 volts , 60 watts & the other of 200 volts , 100 watts are connected in series to a 200 volt supply . The power consumed will be Assume the light bulbs are rated for single connection to 120 V. With the mistaken connection , the power dissipated by each bulb is

Two bulbs, one of 50 watt and another of 25 watt are connected in series to the mains. The ratio of the currents through them is

Two bulbs one of 200 volts, 60 watts & the other of 200 volts, 100 watts are connected in series to a 200 volts supply. The power consumed will be