Physics

Problem

The value of electric potential at a distance of 9 cm from the point charge

4 \times 10^{-7}\,\text{C}

\left[\text{Given } \frac{1}{4\pi\epsilon_0} = 9 \times 10^9\,\text{N m}^2\text{C}^{-2}\right]

4 \times 10^2\,\text{V}

44.4\,\text{V}

4.4 \times 10^3\,\text{V}

4 \times 10^4\,\text{V}