Utah Esthetician State Board Practice Exam

What is the pathway of electric current called?

1. Hertz

2. Circuit

3. Current flow

4. Resistance

The correct answer is: Circuit

The pathway of electric current is known as a circuit. In the context of electricity, a circuit refers to a closed loop or pathway that allows electric current to flow continuously. This involves a power source, conductors (usually wires), and a load (such as a light bulb or a motor) that utilizes the electricity. Understanding the concept of a circuit is crucial, especially in fields related to esthetics where various devices and equipment rely on electrical currents for their operation. A circuit needs to be complete for current to flow; if there is a break in the circuit, the current cannot complete its pathway, and as a result, the devices will not function. The other terms mentioned relate to different aspects of electricity: Hertz measures frequency, current flow describes the movement of current but doesn't define the pathway, and resistance refers to the opposition to the flow of current in the circuit. Therefore, "circuit" is the most accurate term for describing the pathway that allows electric current to travel through.