Q. A point charge +q is placed at the midpoint of a cube of side$a$. The electric flux emerging from the cube is
A) Zero
B) $\frac{3qa^{2}}{\varepsilon_{0}}$
C) $\frac{q}{\varepsilon_{0}}$
D) $\frac{\varepsilon_{0}}{4qa^{2}}$
Explanation
(c) Total electric flux emerging from the cube is
$\frac{q}{\varepsilon_{0}}.$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.