According to Ohm's Law, which electrical unit measures pressure?

Ohm's Law defines the relationship between voltage, current, and resistance in an electrical circuit. In this context, the unit that measures pressure is voltage, commonly expressed in volts. Voltage represents the electric potential difference between two points; it can be thought of as the "pressure" that pushes electric charges through a conductor.

When you consider the flow of electricity, voltage can be likened to water pressure in a pipe: just as water pressure pushes water through a hose, voltage pushes electric charges through a circuit. This characterization is critical in understanding how electrical systems operate, as it indicates how much energy is available to move electrons.

The other units mentioned—amps, watts, and ohms—represent different electrical properties. Amps measure the current, or the flow rate of electric charge, while ohms measure resistance, or how much a material opposes the flow of current. Watts, on the other hand, are a measure of power, representing the rate at which electrical energy is consumed or converted. By recognizing that volts correlate directly with the concept of pressure in electrical systems, we can understand the critical role that voltage plays in circuit functionality.