Advertisements
Advertisements
Question
Explain why it is safer to use a wireless telephone instead of a landline telephone during lightning.
Advertisements
Solution
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.
APPEARS IN
RELATED QUESTIONS
Lightning conductors cannot protect a building from lightning.
Suggest three measures to protect ourselves from lightning.
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.
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 are charges generated?
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.
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.
During thunderstorms, the air is moving ______ rapidly. This air moves rapidly.
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.
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.
