The number of electric field lines crossing an area `DeltaS` is `n_(1)` when `Delta vec(S)`||`vec(E )`, while number of field lines crossing same area is `n_(2)` when `Delta vec(E )` makes an angle of `30^(@)` with `vec(E )`, then :

Options

A. `n_(1)=n_(2)`
B. `n_(1) gt n_(2)`
C. `n_(1) lt n_(2)`
D. cannot say anything

Answer

B

Explanation

The number of field lines crossing an area is directly related to electric flux passing through the surface. In the first case the flux crossing the surface is more than the flux crossing through surface in `2 nd` case, so `n_(1)gtn_(2)`