At distance 'r' from a point charge, the ratio `(U)/(V^(2))` (where 'U' is energy density and 'V' is potential) is best respresented by :

Options

A.
B.
C.
D.

Answer

B

Explanation

`u=(1)/(2)epsilon_(0)E^(2)=(1)/(2)(epsilon_(0)K^(2)Q^(2))/(2r^(4))`
`v=(KQ)/(r)(u)/(V^(2))=((1)/(2)epsilon_(0)K^(2)Q^(2)/r^(4))/((K^(2)Q^(2))/r^(2))=(1)/(2)(epsilon_(0))/(2r^(2))`
because `(u)/(V^(2))prop(1)/(r^(2))` so that correct option option `(B)`