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Charge density of a sphere of radius R i...

Charge density of a sphere of radius `R` is `rho = rho_0/r` where r is distance from centre of sphere.Total charge of sphere will be

A

`rho_0 piR^3`

B

`2 rho_0 piR^2`

C

`3 rho_0 piR^2`

D

`4 rho_0 pie R^2`

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The correct Answer is:
B
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