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A particle of mass m and charge q travel...

A particle of mass m and charge q travels from rest through a potential difference V. Its final energy is

A

q V

B

mq V

C

q V/m

D

mq/V

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A particle of mass 'm' and charge 'q' is accelerated through a potential difference of V volt, its energy will be

    A
    `qV`
    B
    `mqV`
    C
    `((q)/(m))V`
    D
    `(q)/(mV)`

  • A particle of mass .m. and charge .q. is accelerated through a potential difference of .V. volt. Its energy is

    A
    qV
    B
    mqV
    C
    `((q)/(m))V`
    D
    `(q)/(mV)`

  • A charged particle of mass m and charge q is accelerated through a potential differences of V volts. It enters of uniform magnetic field B which is directed perpendicular to the direction of motion of the particle. The particle will move on a circular path of radius

    A
    `((sqrtVm)/(2qB^2))`
    B
    `(2Vm)/(qB^2)`
    C
    `sqrt((2Vm)/q)(1/B)`
    D
    `sqrt((Vm)/q) (q/B)`

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