Question

Derive the eqns for potential due to three concentric spherical shells

Answer 1

Explanation:

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Answer 2

Answer:

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PHYSICS

Three concentric conducting spherical shells of radii R,2R and 3R carry charges Q,−2Q and 3Q, respectively. Compute the potential at r=25R :

A .

20πε0R3Q

B .

25πε0R−3Q

C .

25πε0R−6Q

D .

25πε0R−Q

The potential at a distance r from the centre of a spherical shell of charge of radius a is given by

V=4πϵ0rQ if r>a and V=4πϵ0aQ if r<a

The potential at r=25R for the given system can be written as the sum of potentials due to individual shells.

Potential due to the innermost shell is V1=4πϵ0(5R/2)