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प्रश्न
What causes lightning?
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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.
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संबंधित प्रश्न
If the charge is not in motion, we call it static electricity.
Human body is a conductor of electricity.
In induction, a positively charged body can make an uncharged body positively charged.
To find whether a body is charged or not, an uncharged electroscope is used.
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.
Name three constituents of an atom and state the kind of charge on each of them.
Distinguish between conductors and insulators of electricity.
Give one example each of a conductor and an insulator of electricity.
State two ways of charging a conductor.
What is an electroscope?
