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An electric bulb is rated 220 volt - 100...

An electric bulb is rated 220 volt - 100 watt. The power consumed by it when operated on 110 volt will be

A

`50` watt

B

`75` watt

C

`40` watt

D

`25` watt

Text Solution

Verified by Experts

The correct Answer is:
D
`H_(1)=(V^(2))/Rt & H_(2)=(V^(2))/(R//2)t`
`:. (H_(2))/(H_(1))=2implies H_(2)=2H_(1)`
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