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The amount of electricity which is flowing (it is called the current) is measured in units called amps. The pressure of electricity, the voltage, is measured in volts. A unit of resistance is called an ohm.
Current, voltage and resistance have definite relationship to one another. The current and the voltage determine the power, the rate at which electrical energy is used. A unit of power is a watt.
Закончите предложение an ohm.
A unit of resistance is called _______.
the power.
a watt.
an amp.
an ohm.