Question
Distinguish between a bar magnet and a solenoid.

Answer

Solenoid:
  1. A solenoid is a rod like structure on which copper wire tightly wrapped
  2. Solenoid need electricity for creating magnetic field around it.
Bar magnet:
  1. It is a rectangular coil which attract the pics of small iron
  2. Bar magnet do not need electricity for creating magnetic Field around it.

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