Advertisements
Advertisements
प्रश्न
Describe an experiment to demonstrate that there are two r kinds of charges.
Advertisements
उत्तर
Aim - To show that there are two kinds of charges.
Apparatus - gold-leaf electroscope, glass rod rubbed with a silk cloth.
any two non-identical bodies say A and B.
Procedure -
- Charge the gold leaf electroscope positively by touching it with glass rod rubbed with a silk cloth.
- The gold leaf electroscope shows its charging by showing its leaves diverging.
- Touch the brass cap of this electroscope with body A-Note the divergence of the gold leaves.
- Now touch the brass cap with body Band note the divergence.
Observation
In the case of body A - Leaves further diverge.
In the case of body B - leaves converge.
Inference - Body A (positively charged)
Body B (negatively charged)
So there are two types of charges.
APPEARS IN
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 |
When glass rod is rubbed with dry silk cloth, the electrons move from glass to silk.
When a glass rod is rubbed with dry silk cloth, the charge acquired by the silk cloth is
When a glass rod is rubbed with silk, the glass rod and the silk get charged because
A gold-leaf electroscope is to be charged positively by conduction. For this
What causes the charging of two objects when they are rubbed together?
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.
Describe the method of charging a conductor by induction.
When a charged rod is touched with the disc of a positively charged gold-leaf electroscope, it is observed that the divergence of leaves decreases. What is the kind of charge on the rod?
What causes lightning?
