An electric bulb is rated 220 V and 100 W. Power consumed by it operated on 110 V is

90 W

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25 W

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50 W

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75 W

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Solution

The correct option is B
25 W

Resistance of the bulb

And Power consumed at 110 is =

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Similar questions

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

a) 25W

b) 50W

c) 75W

d) 100W

An electric bulb is rated (60W, 220 V). If it is operated at 110 V, then find the power consumed by it.

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