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- Q24ϵ0
- Q3ϵ0
- Q8ϵ0
- Q6ϵ0

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Solution

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As we know that, total flux due to a charge enclosed in a region is given as ϕ=Qε0 (Gauss's law)

Here, the charge is on a corner of each of the 8 cubes.

Hence, an equal amount of flux will spread outwards through each of the cubes due to symmetry.

Since three faces don't have any effect, the flux will be divided into three parts again.

Therefore, total flux will become, ϕ=Q24ε0

The correct option A.

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