Advertisements
Advertisements
प्रश्न
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?
Advertisements
उत्तर
It happens because the television screen or computer monitor are charged and have static charges accumulated on them and when we touch them with our hands which are uncharged, the charges transfer through our hands and we get a slight shock.
APPEARS IN
संबंधित प्रश्न
Suggest three measures to protect ourselves 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?
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 lightning takes place.
Explain why it is safer to use a wireless telephone instead of a landline telephone during lightning.
During thunderstorms, the air is moving ______ rapidly. This air moves rapidly.
Sometimes lighting may be seen before the thunder is heard. Why?
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.
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.
