Electric Charges And Fields Ques 39
39. A point charge $+q$ is placed at mid point of a cube of side ’ $L$ ‘. The electric flux emerging from the cube is
[1996]
(a) $\frac{q}{\varepsilon_0}$
(b) $\frac{6 q L^{2}}{\varepsilon_0}$
(c) $\frac{q}{6 L^{2} \varepsilon_0}$
(d) zero
Show Answer
Answer:
Correct Answer: 39.(a)
Solution:
- (a) By Gauss theorem
Total electric flux $=\frac{\text{ Total ch arge inside cube }}{\varepsilon_0}$
$\Rightarrow \phi=\frac{q}{\varepsilon_0}$
BETA
