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A charge Q is moving dl distance in the magnetic field B. Find the value of work done by B

Option 1 -

1

Option 2 -

Zero

Option 3 -

Infinite

Option 4 -

-1

0 1 View | Posted 3 months ago
Asked by Shiksha User

  • 1 Answer

  • A

    Answered by

    alok kumar singh | Contributor-Level 10

    3 months ago
    Correct Option - 2


    Detailed Solution:

    As we know that magnetic force acting on a charge particle will be
    F = q (v * B)
    W = F.dl
    Since force and displacement will be always perpendicular so work done is always zero.

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