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On the basis of your understanding of th...

On the basis of your understanding of the following paragraph and the related studied concepts.
An equipotential surface is a surface with a constant value of electric potential at all points on the surface. The component of electric field parallel to an equipotential surface is zero, as the potential does not change in this direction. Thus, the electric field is perpendicular to the equipotential surface at each point of the surface. Further, say the direction of electric field electrical potential gradually fall with distance.
If a charge of 2 nC is taken from equipotential surface number 2 to 3, what is the amount of work done ?

Text Solution

Verified by Experts

Work done `W = q(V_3-V_2) = (2 xx 10^(-9)C) xx (30-20) V = 2xx 10^(-8)J`
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On the basis of your understanding of the following paragraph and the related studied concepts. An equipotential surface is a surface with a constant value of electric potential at all points on the surface. The component of electric field parallel to an equipotential surface is zero, as the potential does not change in this direction. Thus, the electric field is perpendicular to the equipotential surface at each point of the surface. Further, say the direction of electric field electrical potential gradually fall with distance. Draw equipotential surfaces around an isolated positive point charge + q. Mark direction of electric field vecE also.

On the basis of your understanding of the following paragraph and the related studied concepts. An equipotential surface is a surface with a constant value of electric potential at all points on the surface. The component of electric field parallel to an equipotential surface is zero, as the potential does not change in this direction. Thus, the electric field is perpendicular to the equipotential surface at each point of the surface. Further, say the direction of electric field electrical potential gradually fall with distance. Four equipotential surfaces are shown in the adjoining figure. Find the magnitude and direaction of the electric field.

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 be more crowded near regions of large charge densities
    D
    will aways be equally spaced

  • 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
    zero

  • An equipotential surface is that surface on which each and every point has

    A
    same potential
    B
    zero potential
    C
    negative potential
    D
    different potential

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