The electric intensity due to a uniformly charged infinite cylinder of radius `R` , at a distance `r(gt R)` , from its axis is proportional to

Options

A. Directly proportional to `r^2`
B. Directly proportional to `r^3`
C. Inversely proportional to r
D. Inversely proportional to `r^2`

Answer

C

Explanation

`ointE.ds =(ql)/(epsilon_0)implies E xx2pirl= (ql)/(epsilon_0)`
`E = q/(2piepsilon_0r) , E prop 1/r`