Question

A solid sphere of radius R has a charge Q distributed in its
volume with a charge density p = kp, where k and a are
constants and r is the distance from its centre. If the electric
RI
field at
r is times that atr=R, the value of a is (2015)
(a) 3
(b) 5
(c) 2
(d) 7​

Answer 1

Hello Friend..!!

The answer of u r question..!!

Option.B

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