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Question: Answered & Verified by Expert
A charge $q$ is located at the centre of a cube. The electric flux through any face is:
PhysicsElectrostaticsNEETNEET 2003
Options:
  • A \(\frac{2 \pi q}{6\left(4 \pi \varepsilon_0\right)}\)
  • B \(\frac{4 \pi q}{6\left(4 \pi \varepsilon_0\right)}\)
  • C \(\frac{\pi q}{6\left(4 \pi \varepsilon_0\right)}\)
  • D \(\frac{\mathrm{q}}{6\left(4 \pi \varepsilon_0\right)}\)
Solution:
2795 Upvotes Verified Answer
The correct answer is: \(\frac{4 \pi q}{6\left(4 \pi \varepsilon_0\right)}\)
Electric flux through any face
$\begin{aligned}
& =\frac{\text { Total flux }}{\text { number of faces }}=\frac{\left(q / E_0\right)}{6} \\
& =\frac{4 \pi q}{6\left(4 \pi \varepsilon_0\right)}
\end{aligned}$

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