An isolated conducting sphere of diamete...

An isolated conducting sphere of diameter 20 cm placed in air carries a charge of `9muC`. The electric intensity at a point at a distance of 10 cm from the surface of the charged sphere is

A

`10.25xx10^(5)N//C`

B

`15.25xx10^(5)N//C`

C

`25.25xx15^(5)N//C`

D

`20.25xx10^(5)N//C`

Text Solution

Verified by Experts

The correct Answer is:

D

`E=1/(4piepsi_(0))q/r^(2)=(9xx10^(9)xx9xx10^(-6))/((10xx10^(-2))^(2))`
`=20.25xx10^(5)N//C.`

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