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The electric field lines coming out of a...

The electric field lines coming out of an equipotential surface

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On equipotential surface `Delta V = 0 ` As ` Delta V = vec(E).Delta vec(r)`, So `vec(E)` is perpendicular to `Delta vec(r)`
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Equipotential surfaces

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.

Knowledge Check

  • Equipotential surfaces

    A
    are closer in regions of large electric fields compared to regions of lower electric fields
    B
    will be more crowded near sharp edges of a conductor
    C
    will always be equally spaced
    D
    both (a) and (b) are correct

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