Find out electric field intensity due to uniformly charged solid non-conducting sphere of volume charge density ρ and radius R at following points:
(i) At a distance r from surface of sphere (inside)
(ii) At a distance r from the surface of sphere (outside)
Text Solution
Verified by ExpertsThe correct answer is:
CHECK THE SOLUTION.
(i) 
(ii) 
Sol. (i)
Let us construct a Gaussian surface at distance r from surface of sphere inside it (as shown dotted in figure)
∴ r = R – x or x = R – r
Using Gauss law 
;
∴ E. 4π x 2 = 
∴ E = 
or E = 
(ii)
Using Gauss law,
⇒ E.4π (R + r) 2 = 
;
∴ 
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