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Answer 1

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Answer 2

Answer:

1.) A soft metal core made into a magnet by the passage of electric current through a coil surrounding it .

2.) The material used for preparing electomagnet is soft iron .

3.) When an electric current flows in a wire , it creates a magnetic feild around the wire . This effect can be used to make an electomagnet. The strength of an electomagnet depeends upon : The strength of the current passing through the coil ; the greater the current , the greater the strength.

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