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An electric bulb is rated 220 V – 100 W.  The power consumed by it when operated on 110 V will be

a)

75 W

b)

40 W

c)

25 W

d)

50 W


Question ID - 151095 | Toppr Answer

An electric bulb is rated 220 V – 100 W.  The power consumed by it when operated on 110 V will be

a)

75 W

b)

40 W

c)

25 W

d)

50 W

1 Answer - 5876 Votes

3537

Answer Key : (c) -

(c)

Resistance of electric bulb  where subscripts denote for rated parameters.

Power consumed at 110 V,



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