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प्रश्न
Explain why it is safer to use a wireless telephone instead of a landline telephone during lightning.
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उत्तर
During lightning, an electric charge may discharge through telephone cords of landline telephone and may become dangerous. Therefore, it is safer to use mobile phones and wireless/cordless phones during lightning.
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संबंधित प्रश्न
The weather department has predicted that a thunderstorm is likely to occur on a certain day. Suppose you have to go out on that day. Would you carry an umbrella? Explain.
Answer in your own words.
In the lightning conductor, what provision is made for spreading the electricity into the ground?
What is the damage caused by lightning?
Consider the statement given below and choose the correct option.
Assertion: It is safer to stand under a tall tree during lightning.
Reason: It will make you the target for lightning.
Identify the lightning conductor and the copper plate in the following figure.
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?
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?
Explain how lightning takes place.
______ 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.
______ extreme heat will vaporize the water inside a tree, creating steam that may burn out the tree.
______ arrestor is a device used to protect buildings from the effects of lightning.
How does thunder take place?
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.
