Question

Two identical conducting very large plates having charges +4Q and +6Q are placed close to each other at separation d. The plate area of either face of the plate is A. The potential difference between plates $P_1$ and $P_2$ is

• A. $E{V}_{P_1}-V_{P_2}=\frac{-Qd}{A{\epsilon }_0}$
• B. $V_{P_1}-V_{P_2}=\frac{-Qd}{{\epsilon }_{0}A}$
• C. $V_{P_1}-V_{P_2}=\frac{5Qd}{{\epsilon }_{0}A}$
• D. $V_{P_1}-V_{P_2}=\frac{-5Qd}{{\epsilon }_{0}A}$

Answer 1

The correct option is B

$V_{P_1}-V_{P_2}=\frac{-Qd}{{\epsilon }_{0}A}$

$V_{P_2}-V_{P_1}=\frac{Qd}{{\epsilon }_{0}A}{V}_{P_1}-V_{P_2}=\frac{-Qd}{{\epsilon }_{0}A}$