Four point charges each +q is placed on the circumference of a circle of diameter 2 d in such a way that they form a square. The potential at the centre is proportional to
- A$\frac{\mathrm{q}^2}{\mathrm{~d}^2}$
- B$\frac{\mathrm{q}}{\mathrm{d}}$
- C$\mathrm{\frac{d}{q}}$
- D$\frac{\mathrm{d}^2}{\mathrm{q}^2}$
✓ Correct answer: B
Want the full step-by-step reasoning?