Potential difference (or voltage) is a measure of energy, per unit of charge, transferred between two points in a circuit. A potential difference of 1 volt means that 1 joule of work is done per ...

However, unlike an ammeter, you must connect the voltmeter in parallel to measure the potential difference across a component in a circuit.

THIS communication is concerned with the measurement of the transmural potential difference, the short-circuit current, and the net sodium flux in isolated segments of rabbit ileum using a method ...