Question

If same charge 'q' is placed inside a sphere and cube, having radius 1 m and side 2 m respectively. What will be the ratio of flux passing through them:

• A. 1:01
• B. 1:08
• C. 8:01
• D. 1:02

Answer 1

Answer: (A)

1:01

Answer 2

The total flux linked with a closed surface is $\frac{1}{\varepsilon_{0}}$ times the charge enclosed by the closed surface.
enclosed Flux, $\phi = \frac{q_{enclosed}}{\varepsilon_{0}}$
Since enclosed charge is same, so the flux will be same.
flux through sphere = flux through cube $\Rightarrow$ 1 : 1