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A charged particle of mass m and charge ...

A charged particle of mass `m` and charge `q` travels on a circular path of radius `r` that is perpendicular to a magnetic field `B`. The time takeen by the particle to complete one revolution is

A

`(2pimq)/(B)`

B

`(2piq^(2)B)/(m)`

C

`(2piqB)/(m)`

D

`(2pim)/(qB)`

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • A particle is moving along circular path of radius 40 m with a uniform speed of 20m//s . Then the time taken for the particle to complete half revolution will be

    A
    `4 pi s `
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    C
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  • If a charged particle having charge q is moving in a circular path of radius R with a uniform speed u, what would be the magnetic field at the centre?

    A
    `(mu_(0) qv)/(2 pi R^(2))`
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    `(mu_(0) qv)/(3 pi R^(2))`
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