An electricity and magnetism problem by Karan Pandey

Electricity and Magnetism Level 3

A uniformly charged thin spherical shell of radius $R$ carries uniform surface charge density of $\sigma$ per unit area. It is made up of two hemispherical shells,held together by pressing them with a force $F$ .

What is $F$ is proportional to?

{ \sigma }^{ 2 }/ { \epsilon }_{ 0 }\times R

{ \sigma }^{ 2 }/ { \epsilon }_{ 0 }\times { R }^{ 2 }

{ \sigma }^{ 2 }\times R/ { \epsilon }_{ 0 }

\sigma^2\times R^2/\epsilon_0

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An electricity and magnetism problem by Karan Pandey

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