What unit measures electrical resistance?

The unit that measures electrical resistance is Ohms. Resistance is a property of a material that impedes the flow of electric current, functioning as a measure of how difficult it is for that current to pass through a conductor. According to Ohm's Law, which is fundamental in electrical engineering, resistance (R) is determined by the voltage (V) across a component divided by the current (I) flowing through it, mathematically expressed as R = V/I.

Ohms, as the unit of resistance, directly quantify this relationship. When electrical components have higher resistance values, they restrict the flow of current more significantly compared to components with lower resistance. This understanding is crucial for electricians and engineers when designing circuits, as they must account for the resistance of various materials and components to ensure efficient circuit performance.