| the difference between the potentials of two points in an electric field. |

| potential difference n. Symbol V The amount of energy per unit charge needed to move a charged particle from a reference point to a designated point in a static electric field; voltage. Also called potential. |
| potential difference (pə-těn'shəl) Pronunciation Key
The difference, measured in volts, in electric potential between two points, especially two points in an electric circuit. |
potential difference
voltage