Advertisements
Advertisements
Question
Explain how lightning takes place.
Advertisements
Solution
During the development of a thunderstorm, the air currents move in upward direction while the water droplets move in downward direction. These movements cause separation of charges. The positive charges collect near the upper edges of the clouds and negative charges collect near the lower edges of the clouds.
Accumulation of positive charges near the ground also takes place. When the magnitude of collected charges become large, the air cannot resist their flow and as a result, negative and positive charges meet producing streaks of bright light and sound, called lightning.
APPEARS IN
RELATED QUESTIONS
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.
How will you protect yourself from lightning?
Answer in your own words.
Why do farmers stick an iron staff into the ground while working in the field in rainy conditions?
Answer in your own words.
Why is lightning not seen every day during the rainy season?
What is the damage caused by lightning?
What are the remedial measures for the following calamity:
Lightning strike
______ is a device that protects building from lightning strike.
Electric current is to be passed from one body to another. For this purpose, the two bodies must be joined by
If air and cloud were good conductors of electricity, do you think lightning could occur? Explain.
If the materials used for constructing a building were good conductors, do you think lightning will strike the building. Will the lightning conductor be still required to be installed in the building?
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.
Huge quantities of electricity are discharged in lightning flashes and temperatures of over ______°C or more can be reached.
How does thunder take place?
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: 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.
