Which theory is based on the concept that the positive lead is considered the conventional flow of current?

The choice of Conventional Current Theory is based on the historical practice of defining the direction of electrical current. This theory posits that electric current flows from the positive terminal (higher electric potential) to the negative terminal (lower electric potential). This convention dates back to Benjamin Franklin, who assigned positive and negative charges without knowledge of electrons.

In this context, Conventional Current Theory serves as a foundational principle in electrical engineering and electronics. It simplifies the analysis of circuits and components by allowing engineers to talk about current flow in a consistent manner, regardless of the actual movement of electrons, which flow in the opposite direction (from negative to positive) due to their negative charge.

Understanding this concept is crucial for interpreting circuit diagrams, calculating circuit operations, and applying Ohm's Law, as it provides clarity and consistency in communication among engineers and technicians.