Pennsylvania Esthetician State Board Practice Exam

What is the flow of electricity moving along a conductor called?

1. Electric Current

2. Electric Charge

3. Voltage

4. Capacitance

The correct answer is: Electric Current

The flow of electricity moving along a conductor is referred to as electric current. This term specifically describes the movement of charged particles, typically electrons, through a conductor due to a difference in electric potential (voltage). Electric current is measured in amperes and represents the rate at which charge flows. Understanding this concept is crucial for estheticians, especially when using electrical equipment such as facial devices or lasers, as it directly relates to how these tools operate and the safety measures needed when using them. The other terms provided in the choices refer to different concepts in electrical science. Electric charge refers to the property of a particle that causes it to experience a force when placed in an electromagnetic field. Voltage represents the potential difference in electric charge between two points, which drives current through a circuit. Capacitance is the ability of a system to store an electric charge. While all these terms relate to electricity, electric current specifically defines the flow aspect in conductors.