Voltage is defined as what?

Voltage is defined as what?

• A. The magnetic field
• B. The current flow rate
• C. The force or pressure that pushes electrons through an electric circuit
• D. The resistance of a circuit

Answer: (C)

Voltage is the driving force that pushes electrons through a circuit. It’s the electrical pressure, the difference in electric potential between two points that makes charges move. It’s measured in volts and is not the magnetic field, not the current (which is the flow rate of charge), and not the resistance (which opposes flow). Ohm’s law ties them together: current equals voltage divided by resistance, so voltage is what pushes the current to flow. In HVAC terms, the voltage supply provides the push that powers motors and control circuits.

Voltage is the driving force that pushes electrons through a circuit. It’s the electrical pressure, the difference in electric potential between two points that makes charges move. It’s measured in volts and is not the magnetic field, not the current (which is the flow rate of charge), and not the resistance (which opposes flow). Ohm’s law ties them together: current equals voltage divided by resistance, so voltage is what pushes the current to flow. In HVAC terms, the voltage supply provides the push that powers motors and control circuits.