Multiple choice

Which of the following forms an electromagnet?

  1. Iron nail coiled with insulated copper wire

  2. Iron nail kept near a copper coiled wire

  3. Iron nail coiled with insulated copper wire, through which current is flowing

  4. Iron nail kept near a copper coiled wire, through which current is flowing

  5. Iron nail kept near a natural magnet
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Yes, it is correct. A magnetic material when placed between a current carrying coil, behaves like a magnet. 

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