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# What is electric current measured in?

**Electric current is measured in amperes, commonly shortened to "amps."** Electric current is the flow rate of charges in a circuit. Electric current is also represented as the ratio of the quantity of charge passing a given point in a circuit to the duration of time the charges were moving.

Charges flow through a circuit at a constant rate, meaning that the electric current is the same at any point in the same circuit. Electric current is closely related to voltage, measured in volts, and resistance, measured in ohms. The mathematical equation of their relation states that current is equal to voltage divided by resistance.

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