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प्रश्न
Mercury is a ............ of electricity while pure water is ............ of electricity.
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उत्तर
Mercury is a conductor of electricity while pure water is insulator of electricity.
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संबंधित 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 |
Like charges ............while unlike charges attract.
The factor responsible for charging a conductor is
What are the two kinds of charges?
An ebonite rod is rubbed with fur. State the kind of-charge acquired by each.
An ebonite rod rubbed with fur is suspended near another ebonite rod rubbed with fur. State your observation and give a reason to support your answer.
An ebonite rod is rubbed with fur. Compare the charges acquired by them.
What are free electrons?
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.
What are the effects of lightning?
