What is typically measured in Ohms?

Resistance is measured in Ohms, which is the unit of measurement adopted in the International System of Units (SI) to quantify the opposition to the flow of electric current in a circuit. Ohm's Law, which states that voltage (V) equals current (I) times resistance (R), highlights the relationship between these three fundamental electrical concepts.

When there is a potential difference (voltage) across two points in a circuit and a current (flow of electric charge) is present, resistance is the factor that determines how much current will flow for a given voltage. High resistance means less current for a specific voltage, and low resistance means more current. Thus, it is crucial in circuit design and analysis to correctly measure and understand resistance.

The other options represent different electrical parameters: Voltage is the potential difference and measured in Volts, current is the flow of charge and measured in Amperes, and power is the rate of doing work or transferring energy, calculated in Watts. Each of these has its own distinct unit and is not measured in Ohms.