MCQ
When a magnet is placed on a plastic plate with common pins spread on it, then what will happen:
  • A
    Pins stick all around the magnet.
  • B
    Pins stick at the middle of the magnet.
  • Pins stick at the ends of the magnet.
  • D
    None of the above.

Answer

Correct option: C.
Pins stick at the ends of the magnet.
The region of a magnet where the attraction of magnet is the strongest are called poles of the magnet.
We know that a magnet has always two poles (whatever its shape may be), one pole of the magnet is called north pole and the other pole of magnet is called south pole.
If a bar magnet is put into a heap of iron filings, then the iron filings will clinging to it or stick to it.
The maximum amount of iron filings cling to the two ends of the bar magnet because some force of attraction also exists in the middle part of the bar magnet but it is very small.

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