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NEET 2003
Exam
NEET
Year
2003
Subject
Physics
Chapter
Electrostatics

NEET 2003 · Physics · Electrostatics

A charge q is located at the centre of a cube. The electric flux...

A charge qq is located at the centre of a cube. The electric flux through any face is:

Options

  1. A(\frac{2 \pi q}{6\left(4 \pi \varepsilon_0\right)})
  2. B(\frac{4 \pi q}{6\left(4 \pi \varepsilon_0\right)})
  3. C(\frac{\pi q}{6\left(4 \pi \varepsilon_0\right)})
  4. D(\frac{\mathrm{q}}{6\left(4 \pi \varepsilon_0\right)})

Correct answer

B. (\frac{4 \pi q}{6\left(4 \pi \varepsilon_0\right)})

Step-by-step solution

Electric flux through any face = Total flux  number of  faces =(q/E0)6=4πq6(4πε0)\begin{aligned} & =\frac{\text{ Total flux }}{\text{ number\text{ 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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