What unit is typically used to measure electric charge?

The unit typically used to measure electric charge is the coulomb. In electrical terms, a coulomb represents a specific quantity of electricity, defined as the amount of charge transferred by a current of one ampere flowing for one second. This is foundational in understanding electrical principles and is essential for calculating various electrical properties, including capacitance and electrochemical reactions in cathodic protection systems.

Volts measure electrical potential or voltage, which is not the same as charge. Ohms are used to quantify electrical resistance, and watts denote electrical power, which is the rate at which electrical energy is consumed or produced. Understanding these distinctions highlights the specific role that coulombs play in electrical measurements, particularly within the context of cathodic protection where electrical charge is fundamental in assessing system performance and integrity.