The SI unit of the electric field is volts per meter (V/m). This unit is equivalent to Newton’s per coulomb. These are derived units where Newton is a unit of force and Coulomb is the unit of charge.
Besides, what is the formula and unit of magnetic field?
The magnetic field formula contains the constant^{\mu_{0}}. This is known as permeability of free space and has a value^{\mu}_{0} = 4\pi \times 10^{-7} (T \cdot m/ A). Besides, the unit of a magnetic field is Tesla (T).