Answer the following question given this paragraph: The rate at which a device changes electric current to another form of energy is called electric power . The SI unit for powerincluding electric poweris the watt. A watt equals 1 joule of energy per second. High wattages are often expressed in kilowatts, where 1 kilowatt equals 1000 watts. The power of an electric device, such as a hair dryer, can be calculated if you know the voltage of the circuit and how much current the device receives. The following equation is used:. Q: What unit of power is equal to 1 joule of energy per second? Choices: - hertz - byte - volt - watt A:
Answer:
watt