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Three concentric metallic spherical shel...

Three concentric metallic spherical shell `A,B` and `C` or radiin `a, b` and C `(a lt bgt C)` have surface charge densities ` - singama, + sigma`, and ` - aigba` respectively .
The potential of shell `A` is :

A

`( sigma //varepsilon_0) [ a + b -c]`

B

` ( sigma //varepsilon_0) [ a + b -c]`

C

` ( sigma //varepsilon_0) [ a + b -c]`

D

none

Text Solution

Verified by Experts

The correct Answer is:
C
` V_A = (- sigma)/(in_0) + (sigmab)/(in_0) - (sigmac)/(in_0)`
.
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