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प्रश्न
Draw a labelled diagram of a gold leaf electroscope and describe its construction.
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उत्तर
Construction
- Brass rod which passes through an insulator stopper in a glass case.
- Brass disc is at the top end of brass rod.
- Gold leaves Lower end carries two gold (or aluminium) leave held parallel when uncharged.
- Glass case protects the gold leaves from the outside air current.
- Metal foil present at the lower part of the glass case. This is connected to the earth when the electroscope is used.
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संबंधित प्रश्न
A conductor has a large number of free electrons.
An ebonite rod when rubbed with fur acquires the ............ charge.
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 an ebonite rod is rubbed with fur, the rod acquires
A glass rod rubbed with silk is suspended near an ebonite r rod rubbed with fur. What will be your observation? Give a reason to your answer.
An ebonite rod is rubbed with fur. Compare the charges acquired by them.
In each of the following cases, State which body loses electrons:
(a) A glass rod when rubbed with silk.
(b) An ebonite rod when rubbed with fur.
State two ways of charging a conductor.
Describe Franklin’s experiment. What did he conclude from his experiment?
What are the characteristics of a static electric charge?
