The unit Volt/metre corresponds to Electric field intensity.

1. Relation between Field and Potential: The electric field ($E$) is related to the spatial rate of change of the electrostatic potential ($V$). Mathematically, for a small displacement, the relationship is $|E| = \frac{\delta V}{\delta l}$ or more generally $E = -\frac{dV}{dr}$ .
2. Unit Derivation:

• The unit of Potential ($V$) is the Volt (V).
• The unit of distance/length ($l$ or $r$) is the Metre (m).
• Therefore, the unit of Electric Field Intensity ($E$) is Volt/metre (V/m) .

3. Comparison: This unit is equivalent to Newton/Coulomb (N/C), which is derived from the force definition $E = F/q$ .