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The ratio of magnetic field at the cen...

The ratio of magnetic field at the centre of a current carrying circular coil to its magnetic momnts is x. If the current and radius both are doubble the new ratio will become

A

`(x)/(8)`

B

`(x)/(4)`

C

`(x)/(2)`

D

2x

Text Solution

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The correct Answer is:
A
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