Which term describes the measure of electrical resistance?

The term that describes the measure of electrical resistance is Ohm. This unit is named after the German physicist Georg Simon Ohm, who formulated Ohm's Law, which states that the current through a conductor between two points is directly proportional to the voltage across the two points, provided the temperature remains constant. The relationship is defined mathematically as V = IR, where V is voltage, I is current, and R is resistance measured in ohms.

Understanding electrical resistance is fundamental in the field of electronics and electrical work, as it influences how much current will flow in a circuit for a given voltage. Resistance can be affected by various factors, including temperature, material properties, and physical dimensions of a conductor. This knowledge is essential for safe and efficient electrical system design and troubleshooting.

The other terms mentioned relate to different electrical quantities: Joule represents energy, Volt measures electric potential, and Watt denotes power. Each of these plays a crucial role in electrical engineering, but they are distinct from the specific measure of electrical resistance that ohms provide.