Question

I cause iron nails to stick to the magnet .
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Answer 1

Explanation:

When iron nails are brought near one end of a magnet, the nearer end of piece acquires an opposite polarity by magnetic induction. Since unlike poles attract each other, therefore, iron nails are attracted towards the end of the magnet. Thus, the iron nail first becomes a magnet by induction and then it is attracted.

Answer 2

Explanation:

when iron nails near one end of a magnet the nearer end of pieces acquires an opposite polarity buy magnetic induction since unlike poles attract each other therefore iron nails are attracted towards the end of the magnet thus the iron nails first become a magnetby induction and then it is attracted.