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प्रश्न
Match the following
| Column A | Column B |
| Electric power | volt |
| kWh | joule |
| Electric current | volt × ampere |
| Electric energy | watt |
| watt | ampere |
| potential difference | electrical energy |
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उत्तर
| Column A | Column B |
| Electric power | watt |
| kWh | electrical energy |
| Electric current | ampere |
| Electric energy | joule |
| watt | volt x ampere |
| potential difference | volt |
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संबंधित प्रश्न
Silver is an insulator of electricity.
When a comb is rubbed with dry hair both comb and paper get similarly charged.
To find whether a body is charged or not, an uncharged electroscope is used.
Match the following
| Column A | Column B |
| A. Two like charges | 1 negative charge |
| B. Two unlike charges |
2 repel |
| C. Silver is a | 3 insulator |
| D. Silk is an | 4 attract |
| E. Ebonite rod rubbed with fur acquires | 5 conductor |
When a glass rod is rubbed with dry silk cloth, the charge acquired by the silk cloth is
The conductor of electricity is
Describe an experiment to demonstrate that there are two r kinds of charges.
A glass rod is rubbed with silk. Explain the charging of the glass rod and the silk on the basis of electron movement.
Figure below shows a metal rod AB placed on an insulating stand.
In figure (a) a negatively charged ebonite rod C is touched with the metal rod AB, while in figure (b), the negatively charged ebonite rod C is held near the rod AB. State the kind of charges at the ends A and B of the rod, in each case.
How will you use a gold leaf electroscope to find out whether the charge on a charged body is positive or negative?
