A surface is so constructed that, at all points on the surface, the vector points outward. Therefore, it can be said that
A) the surface encloses a net positive charge.
B) the surface encloses a net negative charge.
C) the surface encloses no net charge.
D) the surface vector $\Delta$S at all points on the surface is necessarily parallel to the electric field vector .
E) the surface vector $\Delta$S at all points on the surface is necessarily perpendicular to the electric field vector .

Question

A surface is so constructed that, at all points on the surface, the  vector points outward. Therefore, it can be said that
A) the surface encloses a net positive charge. 
B) the surface encloses a net negative charge. 
C) the surface encloses no net charge. 
D) the surface vector $\Delta$S at all points on the surface is necessarily parallel to the electric field vector . 
E) the surface vector $\Delta$S at all points on the surface is necessarily perpendicular to the electric field vector .

Quizplus · Accepted Answer

The Answer of A surface is so constructed that, at all points on the surface, the  vector points outward. Therefore, it can be said that
A) the surface encloses a net positive charge. 
B) the surface encloses a net negative charge. 
C) the surface encloses no net charge. 
D) the surface vector $\Delta$S at all points on the surface is necessarily parallel to the electric field vector . 
E) the surface vector $\Delta$S at all points on the surface is necessarily perpendicular to the electric field vector .

A Surface Is So Constructed That, at All Points on the Surface