Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3C>Q 1

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If $W$ is the work done when a current $I$ , flows through a conductor of potential difference $V$ for $t$ seconds then:

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Important Questions on Electricity

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10th CBSE

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Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3C>Q 2

One watt hour is equal to:

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Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3C>Q 3

In an electrical circuit three incandescent bulbs A, B and C of rating

40 W

,

60 W

and

100 W

respectively are connected in parallel to an electric source. Which of the following is likely to happen regarding their brightness?

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Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3C>Q 4

If the current

I

through a resistor is increased by

100 %

(assume that temperature remains unchanged), the increase in power dissipated will be

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Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3C>Q 5

Unit of electric power may also be expressed as

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Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3C>Q 1

What do you understand by the term electric power?

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10th CBSE

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Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3C>Q 2

State the SI unit of electric power and define it.

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Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3C>Q 3

Name two bigger units of electric power. How are these units related to SI unit of electric power?

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Core Science Physics>Chapter 3 - Electricity>EXERCISE - 3C>Q 4

What do you understand by term electric energy?