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प्रश्न
How will you use a pith ball electroscope to find out whether the charge on a charged body is positive or negative?
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उत्तर
Take a positively charged pith ball electroscope. Bring the charged body near the pith ball (without touching it). If the pith ball moves away, the body has a similar charge (positive charge) and if the pith ball moves towards the body, the body has negative charge.
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संबंधित प्रश्न
When glass rod is rubbed with dry silk cloth, the electrons move from glass to silk.
If a glass rod rubbed with silk is brought near the cap of a negatively charged electroscope, the divergence of leaves will decrease.
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 |
Charging a conductor by bringing another charged conductor close to it without touching is called
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