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प्रश्न
Why it is not advisable to slide a magnet on an iron bar back and forth during magnetising it?
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उत्तर
It is not advisable to slide a magnet on an iron bar back and forth because moving it in opposite directions will work to cancel each other out.
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संबंधित प्रश्न
Describe a simple experiment to illustrate that like poles of two magnets repel each other while the unlike poles attract ?
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Answer the following.
Why is it not possible to isolate a single magnetic pole?
Give a reason for the following.
Iron is a magnetic substance.
If a bar magnet is hung by a thread tied at its center, its north pole becomes steady in the direction of the ______ Pole of the earth.
What is a natural magnet?
Define the following term:
Angle of declination
With the help of a diagram explain the following:
Magnetisation of steel needle using electric current such that the pointed end should have north polarity.
You are provided with two identical metal bars. One out of the two is a magnet. Suggest two ways to identify the magnet.
Define the terms magnet and magnetism.
