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Can electric field exist longitudinal to...

Can electric field exist longitudinal to an equipotential surface ? Give reason .

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Electric field cannot exist longitudinal to an equipotential surface . Along an equipotential surface , electric potential V = a constant , and hence `E = - (dV)/(dt) = 0` .
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Define an equipotential surface. Draw equipotential surfaces : (i) in the case of single point charge and (ii) in a constant electric field in Z -direction. Why the equpotential surfaces about a single charge are not equidistant ? (iii) Can electric field exist tangential to an equipotential surface ? Given reason.

Define an equipotential surface. Draw equipotential surfaces (i) in the case of a single point charge. (ii) in a constant electric field in Z direction. Why the euipotential surfaces about a single charge are not equidistant ? (iii) Can electric field exist tangential to an equipotential surface ? Give reson.

Knowledge Check

  • The electric field lines coming out of an equipotential surface are

    A
    perpendicular to the surface
    B
    parallel to the surface
    C
    in all directions
    D
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    What are equipotential surfaces? Give their properties.

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