What term describes the indication of the negative or positive pole of an electric current?

The term that describes the indication of the negative or positive pole of an electric current is polarity. In the context of electrical currents, polarity refers to the direction of the electrical flow, indicating which terminal or electrode is positive and which is negative. This distinction is crucial for safely and effectively using electrical equipment, especially in the beauty industry where devices may rely on varying current types for different treatments.

Potential refers more to the energy per charge or the potential energy that drives the flow of current, while voltage is the measure of this potential difference between two points in a circuit. Resistance, on the other hand, is a measure of how much a material opposes the flow of electric current. Thus, while all these terms are related to electricity, polarity specifically addresses the concept of positive and negative charges, making it the correct choice in this context.