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A neutron, a proton, an electron and an ...

A neutron, a proton, an electron and an `alpha`-particle enter a region of uniform magnetic field with the same velocities. The magnetic field is perpendicular and directed into the plane of the paper. The tracks of the particles are labelled in the figure
. The electron follows the track

A

D

B

C

C

B

D

A.

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Knowledge Check

  • A charged particle placed in a uniform magnetic field experiences :

    A
    A force in the direction of the field
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    A force opposite to the direction of the field
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    A force perpendicular to the direction of the field
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    A force in the direction of the field
    B
    A force opposite to the direction of the field
    C
    A force perpendicular to the direction of the field
    D
    No force at all

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    `1:sqrt(2):sqrt(2)`
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