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What causes lightning?

15 viewed last edited 1 year ago
arjunnari99
0
During rain I hear loud sounds and sparks (bright light) with high illumination in a very short time. Why does it happen?
laxman
1
Lightning is an electric current. To make this electric current, first, you need a cloud. When the ground is hot, it heats the air above it. This warm air rises. As the air rises, water vapour cools and forms a cloud. When air continues to rise, the cloud gets bigger and bigger. In the tops of the clouds, the temperature is below freezing and the water vapour turns into ice. Now, the cloud becomes a thundercloud. Lots of small bits of ice bump into each other as they move around. All these collisions cause a build-up of electrical charge. Eventually, the whole cloud fills up with electrical charges. Lighter, positively charged particles form at the top of the cloud. Heavier, negatively charged particles sink to the bottom of the cloud. When the positive and negative charges grow large enough, a giant spark - lightning - occurs between the two charges within the cloud. This is like a static electricity sparks you see, but much bigger. Most lightning happens inside a cloud, but sometimes it happens between the cloud and the ground. A build-up of positive charge builds up on the ground beneath the cloud, attracted to the negative charge in the bottom of the cloud. The ground's positive charge concentrates around anything that sticks up - trees, lightning conductors, even people! The positive charge from the ground connects with the negative charge from the clouds and a spark of lightning strikes.
Emperor.Sathvik
0
lightning occurs because when two clouds hit each other having both positive and negative sides of a cloud hit each other they fix nitrogen and produce lightning.
chede mourya
0
contact of positive and negative in clouds forms lighting