What is the unit of electrical resistance?

The unit of electrical resistance is Ohms. This measurement quantifies how strongly a material opposes the flow of electric current. In the context of Ohm's Law, which states that voltage equals current times resistance (V = I x R), resistance is a crucial factor in determining how much current will flow for a given voltage.

The other units mentioned relate to different electrical concepts: Volts measure electrical potential difference, Watts measure power, and Amperes quantify the flow of electric current. Understanding Ohms as the standard unit for resistance provides a foundational knowledge that is essential for studying electrical circuits and systems.