Q175 / 180 · COMEDK 2015 · Physics

A charge $q$ is placed at the centre of a cube. The electric flux passing through the cube is

  • A
    $\frac{1}{3} \frac{q}{\varepsilon_{0}}$
  • B
    $\frac{1}{6} \frac{q}{\varepsilon_{0}}$
  • Correct answer
    C
    $\frac{q}{\varepsilon_{0}}$
  • D
    $\frac{1}{4} \frac{q}{\varepsilon_{0}}$

Solution

According to Gauss's law, total electric flux passing through the cube, $\phi=\frac{\text { total enclosed charge }}{\varepsilon_{0}}=\frac{q}{\varepsilon_{0}}$

Hence, the correct answer is option: 'C'.

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