• Take a rectangular piece of iron bar.
• Take a bar magnet and keep in contact with one of its poles with one edge of the bar of iron.
• Without lifting the bar magnet, move it along the length of the iron bar till you reach the other end.
• Lift the magnet and bring the pole (the same pole you started with) to the same point of the iron bar from which you began
• Move the magnet again along the iron bar in the same direction as you did before. Repeat this process about 30-40 times.
• Bring few all pins near to the iron bar and check if it is converted to a magnet or not.

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