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A short magnetic needle is pivoted in a ...

A short magnetic needle is pivoted in a uniform magnetic field of induction `1T`. Now, simultaneously another magnetic field of induction `sqrt3T` is applied at right angles to the first field, the needle deflects through an angle `theta` where its value is

A

`30^(@)`

B

`45^(@)`

C

`90^(@)`

D

`60^(@)`

Text Solution

Verified by Experts

The correct Answer is:
D
`B=B_(H)tantheta`
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