What term is used to describe electrical pressure?

Voltage is the term used to describe electrical pressure. It represents the force that pushes electric charges through a conductor in a circuit. This pressure is what enables the movement of electrons, allowing current to flow. Voltage is measured in volts, and it is essentially the potential difference between two points in an electrical circuit, which is crucial for understanding how and why electricity travels.

To illustrate the importance of voltage further, consider how it relates to the other concepts. Current refers to the actual flow of electric charge, while resistance is the opposition to that flow. Power, on the other hand, refers to the rate at which electrical energy is transferred or converted, which is a function of both current and voltage. However, it is voltage specifically that sets the level of electrical pressure necessary for current to flow within a circuit, making it a foundational concept in electrical principles.