Heating, Ventilation, and Air Conditioning (HVAC ) Electrical Practice Test

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How do you calculate the power in watts if a heater operates at 460 volts and draws 5 amps?

230 watts
2300 watts
23000 watts
1150 watts

The correct answer is: 2300 watts

To calculate the power in watts for a electrical device, you can use the formula: Power (Watts) = Voltage (Volts) × Current (Amperes) In this scenario, the heater operates at 460 volts and draws 5 amps. By substituting these values into the formula, you calculate the power as follows: Power = 460 volts × 5 amps = 2300 watts This means that the heater consumes 2300 watts of electrical power while it operates at the given voltage and current. This calculation aligns with the correct answer and reflects the fundamental relationship between voltage, current, and power in electrical systems. Understanding this relationship is essential for evaluating the performance and efficiency of HVAC equipment, as well as ensuring safe and efficient operation within electrical specifications.