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प्रश्न
How lightning takes place?
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उत्तर
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Lightning is produced by the discharge of electricity from cloud to cloud or from cloud to ground.
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During thunderstorm, air is moving upward rapidly.
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This air which moves rapidly carries small ice crystals upward.
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At the same time, small water drops move downward.
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When they collide, ice crystals become positively charged and move upward and the water drops become negatively charged and move downward.
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So the upper part of the cloud is positively charged and the lower part of the cloud is negatively charged.
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When they come into contact, electrons in the water drops are attracted by the positive charges in the ice crystals. Thus, electricity is generated and lightning is seen.
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Sometimes the lower part of the cloud which is negatively charged comes into contact with the positive charges accumulated near the mountains, trees, and even people on the earth. This discharge produces a lot of heat and sparks that result in what we see as lightning.
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संबंधित प्रश्न
Lightning conductors cannot protect a building from lightning.
Explain why it is not safe to go out with an umbrella when there is heavy rain, lightning or thunder.
Answer in your own words.
In the lightning conductor, what provision is made for spreading the electricity into the ground?
Answer in your own words.
Why do farmers stick an iron staff into the ground while working in the field in rainy conditions?
How will you create awareness to prevent lightning?
You might have observed on a dry day that when you touch the screen of a television or computer monitor (with picture tube), you get a slight shock. Why does it happen?
Explain how lightning takes place.
______ is another example of discharge that takes place in clouds.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage.
Assertion: People struck by lightning receive a severe electrical shock.
Reason: Lightning carries very high voltage. Assertion: It is safer to stand under a tall | tree during lightning.
