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Multiple Choice

What is the unit of measurement for electrical current?

Current is the rate at which electric charges move through a conductor. The unit for this rate is the ampere, symbol A, defined as one coulomb of charge passing a point each second. That’s why ammeters are used to measure current. This differs from voltage (potential difference, measured in volts), resistance (measured in ohms), and power (watts, equal to volts times amperes). So the unit for electrical current is the ampere.

Current is the rate at which electric charges move through a conductor. The unit for this rate is the ampere, symbol A, defined as one coulomb of charge passing a point each second. That’s why ammeters are used to measure current. This differs from voltage (potential difference, measured in volts), resistance (measured in ohms), and power (watts, equal to volts times amperes). So the unit for electrical current is the ampere.