Physics · Electrostatic Potential

The electric potential at a distance \( r \) from a point charge \( q \) is proportional to:

1. A
   \( r \)
2. B
   \( \frac{1}{r^3} \)
3. C
   \( \frac{1}{r^2} \)
4. D
   \( \frac{1}{r} \)