IIT JEE , AIEEE Forum - Physics , Electricity

shinee

A very long thick hollow cylinder with charge per unit volume

and inner and outer radius R1 and R2 respectively is present . Find the electric field at the following points
x<R
R1<x<R2
x>R2

feynmann

for x < R1 , charge enclosed = 0

so E = 0

for R 1< x < R2 , applying Gauss law E * 2 pi x l = pi ( x^2 - R1^2 ) l

so E = ( / 2)( x - R1^2/x )

For x> R2 again apply Gauss law

E = (/2)( R2^2 - R1^2 ) /x

shinee

can u tell the the derivation of Gauss law

tarun_bits

gauss law can be proved assuming coulomb`s law to be true...

refer hcv

jainsaurabh_3067

gauss law ia a law and laws cannot be derived