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When a magnet...

Question

When a magnet is placed vertically on a horizontal board, number of neutral points obtained on the board is:

A

four

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B

three

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C

two

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D

one

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Solution

The correct option is D one
Given
A magnet is placed vertically on board

Solution
On board at only one point , the horizontal component of earth magnetic field will cancel magnetic field of the magnet.
The correct option is D

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