Electric Charges And Fields Ques 30
30. What is the flux through a cube of side ’ $a$ ’ if a point charge of $q$ is at one of its corner : [2012]
(a) $\frac{2 q}{e_0}$
(b) $\frac{q}{4 \pi \epsilon_0}$
(c) $\frac{q}{e_0}$
(d) $\frac{q}{2 e_0}$
Show Answer
Answer:
Correct Answer: 30.(b)
Solution:
Eight identical cubes are required to arrange so that this charge is at the centre of the cube, forming a flux.
$f=\frac{q}{4 \pi \epsilon_0}$
BETA
