Question

The number of electric field lines crossing an area `DeltaS is n_1 when Delta vecS||vecE`, while the number of field lines crossing the same area is `n_2` when `DeltavecE` makes an angles of `30^@` with `vecE`. Then
A. `n_1 = n_2`
B. `n_1gtn_2`
C. `n_1`lt`n_2`
D. cannot say anything

Answer 1

Correct Answer - B
The number of field lines crossing an area is directly related
to electric flux passing through surface. In first case, the flux
crossing the surface is more than the flux crossing through
surface in second case, so `n_1gtn_2`.