What is the unit of measurement for electrical resistance?

The unit of measurement for electrical resistance is Ohms (Ω). Ohms are defined as the measure of opposition that a circuit presents to the flow of electric current. According to Ohm's Law, resistance, voltage, and current are all interrelated. When voltage is applied to a circuit, the amount of current that flows is inversely related to the resistance; a higher resistance means less current flows for a given voltage.

In contrast, amperes measure the flow of electric current, volts measure the electrical potential difference, and watts quantify electrical power. Understanding these distinctions is crucial for comprehending how electrical systems operate, and thus reinforces the significance of Ohms in the context of electrical resistance.