The electric field near a conducting surface having a uniform surface charge density $\sigma $ is given by
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(c) Electric field near the conductor surface is given by $\frac{\sigma }{{{\varepsilon _0}}}$ and it is perpendicular to surface.
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If $4 \times {10^{20}}eV$ energy is required to move a charge of $0.25$ coulomb between two points. Then what will be the potential difference between them......$V$
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