Thursday 4 April 2013

Electric field due to an infinite, thin non-conducting sheet

Electric field due to an infinite, thin non-conducting sheet

A sheet of thin plastic wrap, uniformly charged on one side can act as a thin sheet of charge.

The field has a planar symmetry. We will take a Gaussian box to enclose the charge distribution.





Applications of above result

Two parallel sheets are given surface charge densities 1 and 2. Electric fields in different regions are as shown



Consider the following specific cases:

(i) When 1 = 2 = , the situation will be like the one shown below



(ii) When 1 = 2 = - , the situation will be like the one shown below

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