Electric Charges and Fields - Result Question 44
44. 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
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Answer:
Correct Answer: 44. (a)
Solution:
- (a) By Gauss theorem
Total electric flux $=\frac{\text{ Total ch arge inside cube }}{\varepsilon_0}$
$\Rightarrow \phi=\frac{q}{\varepsilon_0}$
