How Does Lightning Form?
How Lightning Forms: Everything You Need to Know
Lightning is formed when there is an accumulation of electrical charges in a storm cloud. These charges separate: negative charges accumulate at the base of the cloud, while positive charges concentrate at the top. When the charge difference between the base of the cloud and the ground (or between different parts of the cloud) becomes too great, the air can no longer isolate the charges. This leads to the formation of lightning, which is basically an electrical discharge that neutralises the potential difference.
How is Lightning and Thunder created?
Lightning and thunder are two closely related phenomena. Lightning is the electrical discharge that occurs between opposing charges. When this discharge passes through the air, it instantly heats the surrounding air to a very high temperature, about 30,000 degrees Celsius. This rapid heating causes the air to expand violently, which produces the sound wave that we perceive as thunder. Thus, lightning creates the visible flash and audible thunder.
How do you create Lightning instead?
Lightning, which is the visible part of lightning, is formed when the electrical discharge passes through the air. Air is normally a poor conductor of electricity, but when the potential difference between opposite charges is very high, the air becomes conductive and allows the electric current to pass through. This passage of the current ionises the air, causing it to glow and creating the flash we see.
How is lightning formed? Here is the ideal explanation for children
Imagine rubbing a balloon against your hair: your hair stands up because the balloon has taken some of the electrical charges from it. In clouds, something similar happens. Water droplets and ice particles inside the clouds rub against each other and exchange electrical charges. Negative charges accumulate at the bottom, while positive charges gather at the top. When these charges try to reconnect, they create a giant spark called lightning!
Lightning is so hot that it rapidly expands the air, which causes a loud “boom”—this is thunder!
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