Two bulbs are 100 W and 50 W and are in series. Each bulb is rated 200 V and the series combination is put across 220 V mains. Comment upon the result.

Two bulbs are 50 W and 30 W and are in series. They are rated 220 volt and 220 volt main put across them. Shall they work correctly?

A bulb is rated 220 V and 100 W. When it is operated at 150 V. Find the resistance of the bulb.

An electric bulb is rated 220 V and 100 W. when it is operated on 110 V, the power consumed will be

An electric bulb is rated 220 V and 100 W. When it is operated on 110 V, the power consumed will be -

Two bulbs are rated (P_1, V) and (P_2, V) . If they are connected (i) in series find the power dissipated in the two combination in terms of P_1 and P_2 ?

Two lamps A rated 100 watt 220 V and B rated 60 watt 220 V are connected in series to electric main supply of 220 V. the ratio of heat produced in lamp A to the lamp B would be