A solid sphere of radius R is charged uniformly. At what distance from its surface is the electrostatic potential half of the potential at the center

Question

A solid sphere of radius R is charged uniformly. At what distance from its surface is the electrostatic potential half of the potential at the center, R, R 2, R 3, 2R

MARKS App · Accepted Answer

V o u t s i d e = 1 2 V centre k Q R + h = 1 2 × 3 2 K Q R R + h = 4 R 3 h = R 3

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