Gas Technician Certification Practice Exam 2026 – Your Complete All-in-One Resource to Guarantee Exam Success!

Electrical potential, also known as voltage, is measured in volts. This unit quantifies the potential difference in electric potential energy per unit charge between two points in an electrical circuit. When a voltage is applied, it can drive current through a conductor, which is fundamental to understanding how electrical systems operate.

Amperes measure the flow of electric current, indicating how much charge is passing through a conductor per unit time, but they do not represent electrical potential. Ohms are the unit of measurement for electrical resistance, indicating how much a material opposes the flow of electric current. Watts represent power, which is the rate at which electrical energy is consumed or produced, calculated as voltage multiplied by current. Each of these units plays a critical role in the study of electricity, but volts specifically measure electrical potential.