Angle between an equipotential surface and electric lines of force is :
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The angle between Electric field and an equi-potential surface is always 900. This is because,when the potential becomes constant,the negative potential gradient also becomes zero,hence necessitating the need for Electric field to be always normal with surface.
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Define an equipotential surface. Draw equipotential surfaces :
(i) in the case of a single point charge and (ii) in a constant electric field in Z-direction.
Why the equipotential surfaces about a single charge are not equidistant ? (iii) Can electric field exist tangential to an equipotential surface ? Give reason.
The electric field lines are always perpendicular to an equipotential surface.
Figure shows two equipotential lines in XY plane for an electric field. The scales are marked. The X-component Ex and Y-component Ey of the electric field in the space between these equipotential lines are respectively.
Electric lines of force always leave an equipotential surface.
Figure shows two equipotential lines in XY plane for an electric field. The X-component of the electric filed, Ex and Y-component, Ey in the space between these equipotential lines are respectively