Arizona Esthetics State Board Practice Exam

Which term refers to the opposition that a material offers to the flow of electric current?

1. Voltage

2. Current

3. Resistance

4. Capacitance

The correct answer is: Resistance

The term that refers to the opposition a material offers to the flow of electric current is resistance. In electrical terms, resistance is a measure of how difficult it is for electrons to move through a conductor. The higher the resistance, the less current will flow for a given voltage. This is fundamental in understanding how electrical circuits operate, as it directly impacts how devices draw power and how efficient they are. Voltage pertains to the potential difference that drives the current through a circuit, while current refers to the actual flow of electrons in a circuit. Capacitance is related to how much electrical charge a capacitor can store. Each of these terms plays a crucial role in the study of electricity and circuits, but resistance specifically defines the opposition to current flow, making it the correct answer to the question.