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A charged of 8xx10^(-6)C is given to a m...

A charged of `8xx10^(-6)C` is given to a metallic sphere of radius 5 cm placed in a medium of dielectric constant 5. The surface charge density of sphere is

A

`2.547xx10^(-4)C//m^(2)`

B

`5.248xx10^(-4)C//m^(2)`

C

`25.48xx10^(-4)C//m^(2)`

D

`52.48xx10^(-4)C//m^(2)`

Text Solution

Verified by Experts

The correct Answer is:
A
`sigma=q/(4piR^(2))=(8xx10^(-6))/(4xx3.14xx(5xx10^(-2))^(2))`
`=2.547xx10^(-4)C//m^(2)`
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NIKITA PUBLICATION-ELECTROSTATICS-Multiple Choice Questions
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