What term refers to the residual magnetism in electronic devices?

The term that refers to the residual magnetism in electronic devices is hysteresis. Hysteresis is a phenomenon that occurs in magnetic materials, where the magnetization of the material does not return to zero even after the external magnetic field is removed. This residual magnetism can cause various effects on the performance of electronic devices, particularly in transformers and inductors, where magnetic cores may retain some magnetization.

Understanding hysteresis is important because it impacts how these devices operate under changing conditions, affecting efficiency, performance, and potential applications in circuits. This phenomenon illustrates the memory effect in magnetic materials, where the past magnetic states influence future behavior, which could be significant in designing circuits that rely on magnetic components.

The other terms, such as inductance and capacitance, describe different electrical properties related to the behavior of voltage and current in circuits, while flux pertains more to the magnetic flow but does not specifically address residual magnetism.