Physics

Problem

Questions 18-19 ![](https://storage.googleapis.com/diraq-contents/question-bank/question-images/1714be8146d6/2025_11_20_15035248b42bfae1659eg-03.jpg) The figure above shows two particles, each with a charge of

+Q

, that are located at the opposite corners of a square of side

d

. 19. What is the potential energy of a particle of charge

+q

that is held at point P ? (A) Zero (B)

\frac{\sqrt{2}}{4 \pi \varepsilon_{0}} \frac{q Q}{d}

(C)

\frac{2}{4 \pi \varepsilon_{0}} \frac{q Q}{d}

(D)

\frac{2 \sqrt{2}}{4 \pi \varepsilon_{0}} \frac{q Q}{d}

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