The magnitude of electric field `vecE` in the annular region of a charged cylindrical capacitor.

Options

A. is same throughout
B. is higher near the outer culinder than near the inner cylinder
C. varies as `1//r`, where `r` is the distance from the axis
D. varies as `1//r^(2)`, where `r` is the distance from the axis

Answer

C

Explanation

`E=(lambda)/(2piin_(0)r),Eprop(1)/(r )`