An uncharged spherical conductor having radius R is as shown. Find potential at a point P :-

Options

• Option A

  $\frac{kQ}{d}$

• Option B

  $\frac{kQ}{r}$

• Option C

  $\frac{kQ}{R}$

• Option D

  $\frac{kQ}{\sqrt{r^2+d^2}}$