Question

An infinite conducting sheet has surface charge density $\sigma$. The distance between two equipotential surfaces is $r$. The potential difference between these two surfaces is

• A. $\frac{\sigma r}{2 \varepsilon_{0}}$
• B. $\frac{\sigma r}{\varepsilon_{0}}$
• C. $\frac{\sigma}{\varepsilon_{0} r}$
• D. $\frac{\sigma}{2 \varepsilon_{0} r}$

Answer 1

Answer: (B)

$\Delta V=E d=\frac{\sigma r}{\varepsilon_{0}}$
$\Delta V=\frac{\sigma r}{\varepsilon_{0}}$