What is the standard unit of electric charge?

The standard unit of electric charge is the coulomb. This unit is defined based on the amount of charge that flows through a conductor carrying one ampere of current in one second. The coulomb provides a measurable way to quantify electric charge, which is crucial for understanding and calculating electrical phenomena. In practical applications, knowing the charge in coulombs helps in using formulas such as Coulomb's law, which describes the force between two charged objects.

The other units mentioned have different contexts in physics: the volt measures electric potential or voltage, the farad quantifies capacitance, and the watt is a unit of power. Each of these plays a significant role in electrical and physical calculations, but they do not represent electric charge itself. Understanding the differences among these units is key to grasping concepts related to electricity and magnetism.