How is one micro ampere defined?

One micro ampere is defined as one millionth of an ampere. In the metric system, the prefix "micro" denotes a factor of 10^-6, or 0.000001. Therefore, when measuring electric current, one micro ampere (μA) is equal to 0.000001 amperes (A). This definition places micro amperes among the smaller units used in electrical circuits, particularly useful in contexts involving sensitive electronics or measurements, where minuscule currents are significant. Understanding this definition is crucial for anyone working in fields involving electronics, as it allows for precise current measurements and comparisons.