Advertisements
Advertisements
Question
How lightning takes place?
Solution
-
Lightning is produced by the discharge of electricity from cloud to cloud or from cloud to ground.
-
During thunderstorm, air is moving upward rapidly.
-
This air which moves rapidly carries small ice crystals upward.
-
At the same time, small water drops move downward.
-
When they collide, ice crystals become positively charged and move upward and the water drops become negatively charged and move downward.
-
So the upper part of the cloud is positively charged and the lower part of the cloud is negatively charged.
-
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.
-
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.
APPEARS IN
RELATED QUESTIONS
How will you create awareness to prevent lightning?
Write an answer to the following question in your own words.
What are the measures to prevent loss of life due to lightning?
During the construction of a building, the lightning conductor was left hanging in the air by mistake. Would the lightning conductor be still effective? Explain.
Explain how does lightning conductor protects a building from getting struck by lightning.
What precautions would you take if lightning occurs while you are outside the house?
______ is another example of discharge that takes place in clouds.
How does thunder take place?
During lightning and thunder, we should avoid standing in-ground and open spaces Why?
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.