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Discussion :: Physics

  1. In order to make an electromagnet you need a

  2. A.

     Dry cell batteries

    B.

     Thin coated copper wire

    C.

     Iron nail

    D.

     All of the above

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    Answer : Option D

    Explanation :

    In order to make an electromagnet you need a dry cell batteries, thin coated copper wire and iron nail.


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