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Question

Electric field at the surface of a charged conductor is proportional to

A
Surface charge density
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B
volume of the conductor
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C
volume charge density
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D
surface area of the conductor
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Solution

The correct option is A Surface charge density
Electric field at the surfaces of charged conductors is σε0.ˆn, where ˆn is a unit vector normal to the surface.
We clearly see that electric field is perpendicular to surface charge density (σ).

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