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When a bar magnet is placed at 90^(@) to...

When a bar magnet is placed at `90^(@)` to a uniform magnetic field, it is acted upon by a couple which is maximum. For the couple to be half of the maximum value, at what angle should the magnet be inclined to the magnetic field `(B)`?

A

`30^@`

B

`45^@`

C

`60^@`

D

`90^@`

Text Solution

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The correct Answer is:
A
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