What is the correct flow direction of current as defined by conventional current flow?

Conventional current flow is defined as the direction in which positive charge would move through a circuit. This definition stems from historical conventions established before the discovery of the electron and its negative charge. In this context, it is understood that current flows from regions of higher potential (positive) to regions of lower potential (negative).

This standard, which defines current as flowing from positive to negative, is widely accepted in electrical engineering, so it is vital to grasp this definition for clearer understanding of circuit theory and operation, especially when analyzing and designing electrical circuits.

While other options may represent different aspects of current or specific situations in a circuit, such as alternating current (which reverses direction periodically) or ground and live comparisons, they do not align with the conventional understanding of current flow established in basic electrical theory. Understanding this conventional flow is essential for anyone working in power engineering and related fields.