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A spherical conductor of radius 10 cm ha...

A spherical conductor of radius 10 cm has a charge of 3.2 x 10^-7 C distributed uniformly. What is magnitude of electric field at point 15 cm from centre of sphere?

A

`12.8xx10^(5)N//C`

B

`1.28xx10^(6)N//C`

C

`1.28xx10^(3)N//C`

D

`1.28xx10^(4)N//C`

Text Solution

Verified by Experts

The correct Answer is:
A
`E=(KQ)/(r^(2))=(9xx10^(9)xx3.2xx10^(-7))/((15xx10^(-2))^(2))`
`E=1.28xx10^(2)N//C`
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