Advertisements
Advertisements
प्रश्न
What causes lightning?
Advertisements
उत्तर
Due to friction from winds, clouds collide with each other and get electrically charged during a thunderstorm (bundles of small water droplets and ice particles form a thunderstorm).
The upper part of the cloud is usually positive while the lower part of the cloud gets usually negatively charged.
A sudden movement in the cloud causes this electrical charge to discharge in the form of lightning.

APPEARS IN
संबंधित प्रश्न
How can you check just by seeing the meter whether the electricity is in use or not?
Like charges ............while unlike charges attract.
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 a glass rod is rubbed with dry silk cloth, the charge acquired by the silk cloth is
What do you understand by electricity at rest?
How will you show that like charges repel and unlike charges attract each other?
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 the method of charging a conductor by conduction.
How will you use a gold leaf electroscope to find out whether a body is charged or uncharged?
