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प्रश्न
Name two substances which can be charged by friction.
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उत्तर
Two substances which can be charged by friction are
- Glass.
- Ebonite.
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संबंधित प्रश्न
Human body is a conductor of electricity.
When an ebonite rod is rubbed with fur, the electrons move from ebonite to fur.
In induction, a positively charged body can make an uncharged body positively charged.
When an ebonite rod is rubbed with fur, the protons move from the ebonite rod to the fur.
To find whether the charge on a body is positive or negative, 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 |
Who discovered the way of producing electricity by friction?
What do you mean by conservation of charges?
Distinguish between conductors and insulators of electricity.
A positively charged glass rod is touched with the disc of an uncharged gold leaf electroscope. What will be your observation?
