A light steel bar and a light iron bar are attracted to a magnet as shown. What will possibly happen when the magnet is removed?

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Solution

As the steel and iron both are magnetic materials and behave like a temporary magnets in presence of an external magnetic field. As the magnet remove, the magnetic properties of both Iron and Steel will vanish. and they become separated.

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Question 18

Boojho kept a magnet close to an ordinary iron bar. He observed that the iron bar attracts a pin as shown in the figure.

What inference could he draw from this observation? Explain.

Q. Which of the following cannot happen, irrespective of whether the given iron bar B is a bar magnet or not?
(a) Both ends of B are attracted to the north pole of a magnet.
(b) Both ends of B are attracted to the south pole of a magnet.
(c) One end of B is attracted and the other end is repelled by the north pole of a magnet.
(d) Both ends of B are repelled by the south pole of a magnet.

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