Which term describes the direction of current flow in a circuit?

The correct term that describes the direction of current flow in a circuit is polarity. Polarity indicates the positive and negative terminals of a circuit, which fundamentally determines the direction in which current flows. When you connect a power source, such as a battery, the conventional current flows from the positive terminal to the negative terminal. Understanding polarity is essential for correctly wiring circuits and ensuring that electrical components function as intended.

Voltage refers to the electric potential difference that drives the current through the circuit, while current itself is the flow of electrical charge. Resistance is a measure of how much a component opposes the flow of current. While voltage, current, and resistance are all critical to understanding electrical circuits, it is polarity that specifically indicates the direction of current flow.