Which of the following is equal to 4πε04\pi\varepsilon_04πε0?
The electric field strength at a distance of 1 m1\text{ m}1 m from a point charge of 1 C1\text{ C}1 C in a vacuum.
The capacitance of an isolated conducting sphere of radius 1 m1\text{ m}1 m in a vacuum.
The electrostatic force between two point charges of 1 C1\text{ C}1 C separated by a distance of 1 m1\text{ m}1 m in a vacuum.
The electric potential at a distance of 1 m1\text{ m}1 m from a point charge of 1 C1\text{ C}1 C in a vacuum.
