North Dakota Cosmetology Practice Exam 2026 – 400 Free Practice Questions to Pass the Exam

The flow of electricity along a conductor is referred to as electric current. This is a fundamental concept in electrical theory and is crucial for understanding how electrical circuits operate. Electric current represents the movement of charged particles, usually electrons, through a conductive material, such as copper wire.

In the context of electrical circuits, electric current is measured in amperes (A) and is an essential factor for determining how effectively electrical devices function. A good grasp of electric current helps professionals in cosmetology understand equipment such as hair dryers, curling irons, and other electrically powered devices. Understanding this concept is key to ensuring safety and proper usage of such electrical tools in a salon setting.

Voltage, on the other hand, refers to the potential difference that drives electric current through a circuit. Resistance is the opposition to the flow of electric current within a conductor, while power is the rate at which electrical energy is transferred or converted. Each of these terms plays a significant role in the study of electricity, but when discussing the actual flow of electricity, the term electric current is the most accurate.