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प्रश्न
Write a short note on lighting conductors.
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उत्तर
Lightening conductor is a device used to safeguard the large buildings against the lightening of the thunderstorm. Normally, they are fitted on the top of tall buildings as a safety device. It consists of few metal spikes fitted to the highest part of the building and connected to thick copper strip which is buried inside the earth.
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संबंधित प्रश्न
You are given a magnet. How will you use it to find north-south direction at a place?
State three important uses of a magnet.
Answer the following.
Why is it not possible to isolate a single magnetic pole?
Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
Define the following term regarding a bar magnet:
Magnetic equator
Fill the blank spaces in the table given below:
| Nature of bar | Action of compass needle | |
| North Pole | South Pole | |
| Non-magnetic | No action | ________ |
| ________ | attracted | attracted |
| North pole of a bar magnet | ________ | _________ |
| ________ | attracted | repelled |
Describe two simple experiments to support the statement that magnetism is a property of the molecules of a magnet.
Define the term Magnetic axis
Define the following term:
Geographic meridian
Define natural magnet.
