Question

3. An unmagnetised bar of steel can be
by rubbing a bar magnet
along its length​

Answer 1

Answer:

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Answer 2

Answer:

Place the magnet at one end of the piece of metal. The magnet must make as much contact with the metal as possible. Place light pressure on the magnet and rub the metal in one direction only. Magnetization will take some time to accomplish so continue rubbing until the iron or steel attracts other pieces of metal.