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Question

Do you think an electromagnet can be used for separating plastic bags from a garbage heap? Can it be used to separate scrap iron from the heap? Explain.

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Solution

An electromagnet is a temporary magnet in which a magnetic field is produced by passing electricity through a magnetic material. It shows all the properties of an ordinary magnet until the electric current is removed.

So an electromagnet cannot be used for separating plastic bags from a garbage heap because plastic bags are non-magnetic materials and an electromagnet can only be used to separate magnetic materials.

So by using an electromagnet, scrap iron can be separated from the heap, as it is a magnetic material.

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