Unit µΩ
Name microohm
Category Electrical Resistance
Details A microohm (µΩ) is a unit of electrical resistance in the International System of Units (SI). It is equal to one millionth (10⁻⁶ or 1/1,000,000) of an ohm, which is the standard unit of electrical resistance. Electrical resistance is the ability of a material or substance to oppose the flow of electrical current.

The microohm is commonly used to measure very small resistance values, particularly in materials with low resistivity or with very short lengths. This unit is often used in the context of electrical connections, such as those between conductive surfaces or wires, and metallurgical investigations to determine the quality of conductive materials.

In applications such as power transmission lines or high-precision electrical circuits, even tiny resistances can cause significant energy loss or performance degradation, so it is essential to characterize and minimize these resistances. Measuring resistance in microohms allows engineers and scientists to better understand and control these small resistances to optimize the performance of electrical systems.