The potential at a distance $R/2$ from the centre of a conducting sphere of radius $R$ containing charge $Q$ will be:
- A0
- B$\dfrac{Q}{8\pi\varepsilon_0R}$
- C$\dfrac{Q}{4\pi\varepsilon_0R}$
- D$\dfrac{Q}{2\pi\varepsilon_0R}$
✓ Correct answer: C
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