Electrostatics Question 743
Question: For a given surface the Gauss’s law is stated as $ \int _{\vec{E}.dA=0.} $ From this we can conclude that
Options:
A) E is necessarily zero on the surface
B) E is perpendicular to the surface at every point
C) the total flux through the surface is zero
D) the flux is only going out of the surface
Show Answer
Answer:
Correct Answer: C
Solution:
[c] $ \int _{\vec{E}d\vec{A}}=0, $
represents charge inside close surface is zero. Electric field as any point on the surface may be zero.
