What is the unit of charge?

The unit of charge is the Coulomb. This unit is fundamental in the study of electricity and is defined in terms of the flow of electric current. Specifically, one Coulomb is equivalent to the amount of charge transported by a constant current of one Ampere in one second. This relationship is essential because it links the concepts of charge, current, and time together, enabling a comprehensive understanding of electrical circuits and phenomena.

In the context of electrical measurements, other units like Volt, Ohm, and Ampere serve distinct roles. The Ampere measures the flow of electric current, while the Volt signifies the potential difference or electrical pressure that drives the flow of charge. The Ohm, on the other hand, quantifies electrical resistance. Each of these units has specific applications in electrical engineering and physics, but the Coulomb stands out as the direct measure of electric charge. Understanding this foundational concept is crucial for exploring more complex electrical theories and applications.