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CBSE - XII Science - Physics - Electrostatic Potential and Capacitance

dreive the expression for electric field on the surface of charge conducting sphere...! E=$/e0 where E is electic field... $=surface charge density.. e0=relative permitivity

Asked by nilesh gangwani 9th February 2011, 5:30 PM
Answered by Expert


Dear student,

The  electric filed of a point charge Q can be obtained by a straightforward application of Gauss law. Considering a Gaussian  suaface in the form of a sphere at radius r, the electric field has the same magnitude at every point of the sphere and is directed outward. The electric flux is then just the electric field times the area of the sphere.

The electric field at radius r is then given by:
Answered by Expert 10th February 2011, 3:14 PM

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