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An electric bulb is rated 220V and 100W. When it is operated o

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Class 10

NCERT

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Which of the following terms does not represent electrical power in a circuit?

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

Calculate the number of electrons constituting one coulomb of charge.

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Question

Easy

Solving time: 3 mins

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

100 W

75 W

50 W

25 W

Views: 5,913 students

Updated on: Feb 28, 2024

Book:

Science (NCERT)

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

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Text solutionVerified

P = V^{2} / R

220 V,

100 = 22 0^{2} / R .......... (i)

110 V,

P = 11 0^{2} / R ........... (ii)

Dividing (i) from (ii),

P /100 = 11 0^{2} /22 0^{2}

P = 25 W

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Question Text	An electric bulb is rated 220V and 100W. When it is operated on 110V, the power consumed will be:
Updated On	Feb 28, 2024
Topic	Electricity
Subject	Science
Class	Class 10
Answer Type	Text solution:1 Video solution: 10
Upvotes	1044
Avg. Video Duration	3 min

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

Text solutionVerified

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