Question

Define (i) electric field strength, (ii) electric potential.

How are these quantities related?

Answer 1

The electric field intensity at any point is the electric force experienced by unit test charge placed at the location.

The electric potential at a point defined as the amount of work done in bringing a unit positive charge from infinity to that charge.

The electric field strength is

$E=\frac{V}{d}$

Here V is the potential difference and d is the distance.