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A 220 volt, 1000 watt bulb is connected ...

A 220 volt, 1000 watt bulb is connected across a 110 volt mains supply. The power consumed will be

A

`1000 W`

B

`750 W`

C

`500 W`

D

`250 W`

Text Solution

Verified by Experts

The correct Answer is:
D
`P = V^(2)// R`. If `V` is halved ,`P` is reduced by a factor of `4` . So new power is `(1000 //4) W , i.e, 250 W`.
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