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A charged particle is moving in a unifor...

A charged particle is moving in a uniform magnetic field. Then ______ .

A

its momentum changes but kinetic energy does not change.

B

its momentum and kinetic energy both change.

C

neither the momentum nor kinetic energy changes.

D

kinetic energy changes but the momentum does not change.

Text Solution

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The correct Answer is:
A
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Knowledge Check

  • A charged particle is moving with velocity vecv in a uniform magnetic field vecB . The magnetic force acting on it will be maximum when _____ .

    A
    `vecvandvecB` are in same direction.
    B
    `vecvandvecB` are in opposite direction.
    C
    `vecvandvecB` are mutually perpendicular.
    D
    `vecvandvecB` make an angle of `45^(@)` with each other.

  • When a charged particle moves in a magnetic field its kinetic energy _______ .

    A
    remains constant
    B
    can increase
    C
    can decrease
    D
    can increase or decrease

  • When a charged particle enters perpendicular to uniform magnetic field, path followed by it is ______

    A
    linear
    B
    circular
    C
    helical
    D
    parabolic

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    A current carrying loop is placed in a uniform magnetic field. The torque acting on it does not depend upon ______ .

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