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A charged cylinder of radius 2 cm has su...

A charged cylinder of radius 2 cm has surface density of charge `8.85xx10^(-9)C//m^(2)`. It is placed in a medium of dielectric constant 5. The electric intensity at a point at a distance of 4 m from its axis is

A

`5 V//m`

B

`4 V//m`

C

`3 V//m`

D

`1 V//m`

Text Solution

Verified by Experts

The correct Answer is:
D
`E=(sigmaR)/(in_(0)kr)=(8.85xx10^(-9)xx2xx10^(-2))/(8.85xx10^(-12)xx5xx4)=1V//m`
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