A small conducting sphere of radius r is lying concentrically inside a bigger hollow conducting sphere of radius R . The bigger and smaller spheres are insulated from each other and are charged to Q and q Q q respectively. The potential difference between the sphere will be

Question

A small conducting sphere of radius r is lying concentrically inside a bigger hollow conducting sphere of radius R . The bigger and smaller spheres are insulated from each other and are charged to Q and q Q > q respectively. The potential difference between the sphere will be, 1 4 πε 0 q r - q R, 1 4 πε 0 q r + q R, 1 4 πε 0 q r - Q R, 1 4 πε 0 q r + Q R

MARKS App · Accepted Answer

First we calculate total potential on sphere A and B V A = k q r + k Q R V B = k q R + k Q R ∴ V A - V B = k q r - k q R

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