Question

A soft iron bar is tied by a thread in the middle and is suspended from a rigid support such that it is free to rotate in a horizontal plane. It shall come to rest :
(a) along north-south direction
(b) along east-west direction
(c) equally inclined to N-S and E-W direction
(d) in any direction

  • Category: Magnetism ICSE Class 9
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Answer

(d) in any direction

Reason — As the soft iron bar is not magnetised, hence it will not align itself with the Earth’s magnetic field and will come to rest in any direction.

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