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प्रश्न
Answer the following in detail.
Write a short note on the theory of magnetism.
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उत्तर
All substances are made of minute particles. In a magnetic substance whether magnetized or non-magnetized), each individual particle behaves like an independent magnet. In the unmagnetized state, these particles within the substance are present in a random fashion such that they cancel out the magnetic effects of each other.
In a magnetized state, these particles align in a particle direction and the substance behaves like a magnet.
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संबंधित प्रश्न
Fill in the blank
Like poles ______ each other and unlike poles _____
Select the correct alternative
A freely suspended magnet rests in
Explain the meaning of the term magnetic field ?
Draw diagrams of the artificial magnets of four different shapes?
How will you do this?
Find the north pole of a magnet.
Write the answer in your word.
Write the properties of a magnet.
What is a natural magnet?
Give scientific reason:
Soft iron is used to make electromagnets.
Why it is not advisable to slide a magnet on an iron bar back and forth during magnetising it?
Define electromagnet.
