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A charge particle moves with velocity v...

A charge particle moves with velocity ` vec(V)` in a uniform magnetic field ` vec(B)` . The magnetic force experienced by the particle is

A

always zero

B

zero, if `vec(B) and vec(V)` are perpendicualr

C

zero, if `vec(B) and vec(V)` are parallel

D

zero, if `vec(B) and vec(V)` are inclined at `45^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • A charged particle moves with a velocity vecv in a uniform magnetic field vecB . The magnetic force experienced by the particle is

    A
    always zero
    B
    zero if `vecv` and `vecB` are perpendicular
    C
    never zero
    D
    zero if `vecv` and `vecB` are parallel or antiparallel.

  • A charged particle moves with velocity v in a uniform magnetic field vecB . The magnetic force experienced by the particle is

    A
    Always zero
    B
    Never zero
    C
    Zero, if `vecB` and `vecv` are perpendicular
    D
    Zero, if `vecB` and `vecv`are parallel

  • A charged particle is moving with velocity Vin magnetic field

    A
    Its momentum changes but total energy remains same
    B
    both momentum and total energy remains same
    C
    both momentum and total energy change
    D
    total energy changes but momentum remains the same

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