Question

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

• A. $\frac{4\pi q}{6(4\pi\varepsilon_{0})}$
• B. $\frac{\pi q}{6(4\pi\varepsilon_{0})}$
• C. $\frac{q}{6(4\pi\varepsilon_{0})}$
• D. $\frac{2\pi q}{6(4\pi\varepsilon_{0})}$

Answer 1

Answer: (A)

$\frac{4\pi q}{6(4\pi\varepsilon_{0})}$

Answer 2

$\varphi_{face} = \frac{q}{6\varepsilon_{0}} = \frac{4\pi q}{6(4\pi\varepsilon_{0})}$