Physics, 07.03.2020 03:15 S28073161

A solid sphere of radius R has a charge Q distributed in its volume with a charge density rho=κr^a, where κ and a are constants and r is the distance from its centre.
If the electric field at r= R/8 is 1/8 times that at r=R, find the value of a .

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A solid sphere of radius R has a charge Q distributed in its volume with a charge density rho=κr^a,...