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A charged particle of mass m is moving w...

A charged particle of mass m is moving with a speed u in a circle of radius r. If the magnetic field induction at the centre is B, the charge on the particle is

A

`(4pi r^(2)B)/(mu_(0)u)`

B

`(2pir^(2)B)/(mu_(0)u)`

C

`(m u)/(Br)`

D

`(2m u)/(Br)`

Text Solution

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The correct Answer is:
A
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