Washington Master Esthetics Practice Exam

The term that describes a current flowing along a path of least resistance between positive and negative electrodes positioned at opposite ends is best represented by bipolar radio frequency. In bipolar radio frequency, the current is delivered between two electrodes, which creates a localized effect by allowing the electricity to pass between them. This results in a more focused treatment area, as the energy is primarily contained within the tissue between the two electrodes, enhancing its efficacy in various esthetic procedures.

Monopolar radio frequency, on the other hand, involves one active electrode and a dispersive electrode, leading to a different treatment mechanism and energy distribution, which does not align with the description of the current traveling between two electrodes. Similarly, while alternating current and direct current relate to types of electrical flow, they do not pertain specifically to the arrangement and function of electrodes in the context described. Therefore, bipolar radio frequency is the most accurate term for the current behavior outlined in the question.