A sphere of radius R has a variable charge density rho(r)=rho_(0)r^(n-1)(rleR). If ratio of "potential at centre" and "potential at surface" be 3//2 then find the value of n

A sphere of radius R has a variable charge density rho(r)=rho_(0)r^(n-

1.	A sphere of radius R has a variable charge density rho(r)=rho_(0)r^(n-1)(rleR). If ratio of "potential at centre" and "potential at surface" be 3//2 then find the value of n
Answer» Solution :Method 1: If `rho(r)=rho_(0)(="CONSTANT")` then we know that required `(3/2(KQ)/R)/((KQ)/R)=3/2` Hence `n=1` Method 2: You MAY use integration method also to solve this PROBLEM.

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A sphere of radius R has a variable charge density rho(r)=rho_(0)r^(n-1)(rleR). If ratio of "potential at centre" and "potential at surface" be 3//2 then find the value of n

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