What is the unit of resistance in electrical circuits?

The unit of resistance in electrical circuits is Ohms. Resistance is a measure of how much a material opposes the flow of electric current. According to Ohm's Law, which states that voltage (in volts) is equal to current (in amperes) multiplied by resistance (in ohms), it becomes clear that resistance is a fundamental property that determines how easily electricity can flow through a circuit. Thus, the correct identification of this unit as Ohms is essential for understanding and calculating electrical properties in various applications, including solar energy systems.

Volts are the unit of electric potential, amperes measure the flow of electric current, and watts quantify electrical power. Each of these units plays a distinct role in electrical engineering, but none represent resistance, reinforcing the importance of recognizing Ohms specifically for that purpose.