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An electric bulb marked 40 W and 200V, is used in a circuit of supply voltage 100V. Now its power is

+1 vote

asked Jan 25, 2019 in Physics by kratos

An electric bulb marked 40 W and 200V, is used in a circuit of supply voltage 100V. Now its power is

(a) 10 W

(b) 20 W

(c) 40 W

(d) 100 W

physics
current electricity
class-12
class-10
neet
cbse
aiims

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1 Answer

+1 vote

answered Jan 7, 2020 by kratos

Best answer

Correct option: (a) 10 W

Explanation:

Resistance of bulb

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