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Questions  

A hollow conducting sphere has inner radius 5cm and outer radius 8cm then find maximum possible potential of conductor if breakdown electric field of air is 3 x 106 V/m :

a
240 kV
b
480 kV
c
960 kV
d
720 kV

detailed solution

Correct option is A

For outer sphereE=VR ⇒V=ER=240 KV

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Similar Questions

Two spherical shells are as shown in figure.

Let r be the distance of a point from their common centre.  Then, match the following columns and mark the correct choice from the given codes.

 Column-I Column-II
i.Electric field for r < R1p.is constant for q2 and vary for q1
ii.Electric potential for r < R1q.is zero for q2 and vary for q1
iii.Electric potential for R1 < r <R2r.is constant
iv.Electric field for R1 < r <R2s.is zero

Codes:


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