Question

(b) What happens if bar magnet is cut into two pieces along it's length? ​

Answer 1

Answer:

When we cut along the length, pole strength of each new magnet is half the pole strength of original magnet , magnetic moment is also halved, as length remains the same. (b) On melting, iron bar magnet loses its magnetism to some extent. ... An iron nail is unmagnetised.

Explanation:

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Answer 2

Answer:

North and South pole develope on both magnets, it self

(we can't separate north and south of the magnet)