Please answer the following question with explanation
Asked by Deepak
10th September 2018,
2:40 PM
Answered by Expert
Answer:
As shown in figure consider a spherical continuous charge distribution with charge density varies radially as
when r ≤ R , otherwise zeroIn order to find electrical field at a point P which is at a distance d from center and inside the sphere,
let us consider a spherical shell of radius r and thickness dr as shown in figure.
electrical field dE at a point P is given by, dE 
total electrical field E 
( upper limit of integration is set as d, because if we consider the shell after the point p,
then point P is inside a charged spherical shell. In that case electrical field is zero)
Answered by Expert
10th September 2018,
5:33 PM
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