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प्रश्न
Describe a pith ball electroscope. how can you use it to test whether a body is charged or uncharged?
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उत्तर
PITH BALL ELECTROSCOPE
It consists of a small pith ball suspended by a dry silk thread from an insulating stand.
TO TEST A BODY IS CHARGED OR NOT:
Bring the body to be tested near the pith ball (without touching it). If the pith ball moves towards the body, the body is charged. But if the body does not move, the body is uncharged.
APPEARS IN
संबंधित प्रश्न
In induction, a positively charged body can make an uncharged body positively charged.
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
When a glass rod is rubbed with silk, the glass rod and the silk get charged because
What do you understand by electricity at rest?
What do you mean by conservation of charges?
An ebonite rod is rubbed with fur. Compare the charges acquired by them.
What causes the charging of two objects when they are rubbed together?
Can you charge an insulator by the method of conduction?
How will you use a pith ball electroscope to find out whether the charge on a charged body is positive or negative?
