One watt hour is equal to:

Important Questions on Electricity

EASY

10th CBSE

IMPORTANT

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

In an electrical circuit three incandescent bulbs A, B and C of rating $40 \mathrm{W}$, $60 \mathrm{W}$ and $100 \mathrm{W}$ respectively are connected in parallel to an electric source. Which of the following is likely to happen regarding their brightness?

MEDIUM

10th CBSE

IMPORTANT

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

EASY

10th CBSE

IMPORTANT

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

Unit of electric power may also be expressed as

EASY

10th CBSE

IMPORTANT

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

What do you understand by the term electric power?

EASY

10th CBSE

IMPORTANT

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

State the SI unit of electric power and define it.

EASY

10th CBSE

IMPORTANT

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?

EASY

10th CBSE

IMPORTANT

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

What do you understand by term electric energy?

EASY

10th CBSE

IMPORTANT

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

Name and define the smallest commercial unit of electric energy.