Current Electri...

A 60 watt bulb carries a current of 0.5 amp. The total charge passing through it in 1 hour is

Two conductors made of the same material are connected across a common potential difference. Conductor A has twice the diameter and twice the length of conductor B. The power delivered to the two conductors P_A and P_B respectively is such that P_A/P_B equals to

A heating coil can heat the water of a vessel from 20° C to 60° C in 30 minutes. Two such heating coils are put in series and then used to heat the same amount of water through the same temperature range. The time taken now will be (neglecting thermal capacity of the coils)

If 2.2 kilowatt power is transmitted through a 10 ohm line at 22000 volt, the power loss in the form of heat will be

Two resistors having equal resistances are joined in series and a current is passed through the combination. Neglect any variation in resistance as the temperature changes. In a given time interval

Watt-hour metre measures

Pick out the wrong statement

Two resistors of 6 Ω and 9 Ω are connected in series to a 120 volt source. The power consumed by the 6 Ω resistor is

If 2.2 kW power is transmitted through a 100 Ω line at 22000 V, the power loss in the form of heat will be

A 4µF conductor is charged to 400 volts and then its plates are joined through a resistance of 1k Ω. The heat produced in the resistance is