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An electron is moving parallel to a long...

An electron is moving parallel to a long, straight current-carrying wire. Does it experience any force?

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Yes
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On any plane perpendicular to a long straight current carrying conductor, the magnetic lines of force are circular. Discuss whether these circular lines of force are equidistant.

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Knowledge Check

  • The magnetic field developed at a point near a straight current carrying conductor depends on

    A
    material of the conductor
    B
    distance of point from the conductor
    C
    direction and magnitude of current
    D
    medium between the point and conductor

  • Shown in the figure ia a very long semi cyllinderical conducting shell of radius R and carrying a current I an infinity long staright current carrying conductor is lying along the axis of the semi cyllinder if the current flowing through the straight wire i_0 then the force per unit length on the conducting wire is

    A
    `(2mu_0ii_0)/(piR^2)`
    B
    `(mu_0i_0i)/(piR^2)`
    C
    `(mu_0i_0i)/(2pi^2R)`
    D
    none of these

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