MCQ
Select the object which can be placed between the open ends to light up the bulb in an electric circuit.
  • A
    Needle of sewing machine.
  • B
    A copper coin.
  • C
    An iron nail.
  • Any one of the above three.

Answer

Correct option: D.
Any one of the above three.
All these are conductors and if placed between the open ends, the bulb will light up.

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