How is resistance in an electrical circuit measured?

Resistance in an electrical circuit is measured in Ohms, which is indicated by the symbol Ω. The concept of resistance refers to the opposition that a circuit component or material presents to the flow of electric current. Understanding resistance is crucial for calculating how much current will flow in a circuit given a certain voltage applied across it, as described by Ohm's Law, which states that V = I * R, where V is voltage, I is current, and R is resistance.

The correct answer highlights the unit specifically designed for this measurement, emphasizing that Ohms are the standard unit that defines how resistance is quantified in electrical systems. Other quantities, such as Watts, Volts, and Amperes, are related to different electrical properties: Watts measure power, Volts measure electric potential difference, and Amperes measure the flow of electric current. Therefore, the answer reflecting resistance specifically aligns with the fundamental principles of electrical engineering and circuit analysis.