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Electricity potential difference, also known as voltage, is the measure of the difference in electric potential energy between two points in an electric circuit. It is measured in volts (V).
Electric current is the rate of flow of electric charge, while electricity potential difference is the driving force that causes the current to flow. In other words, potential difference is the reason why electric current flows.
The unit of measurement for electricity potential difference is volts (V), named after the Italian physicist Alessandro Volta who invented the electric battery in the 18th century.
The relationship between electricity potential difference, current, and resistance is described by Ohm's Law: V = IR, where V is the potential difference in volts, I is the current in amperes, and R is the resistance in ohms. In simple terms, as resistance increases, the potential difference needed to maintain the same current also increases.
Electricity potential difference is measured using a voltmeter, which is a device that measures the potential difference between two points in a circuit. It is typically connected in parallel with the component or circuit being measured.
