West Virginia Barber Written Practice Exam

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What term describes the property of having positive or negative poles?

Electrode
Iontophoresis
Modality
Polarity

The correct answer is: Polarity

Having positive or negative poles is characteristic of polarity. In the context of barbering, understanding polarity is essential when working with electrical tools and equipment, such as clippers or trimmers. Polarity refers to the property of having distinct positive and negative charges, which is crucial for proper functioning and ensuring safety when using electrical devices. Regarding the other options: - An electrode is a conductor through which electricity enters or leaves an object, typically through a nonmetallic part or airborne particles. - Iontophoresis is a therapeutic modality that involves using an electric current to deliver medication through the skin. - Modality refers to a method or technique used for a particular treatment or therapy.