This course is designed to familiarize participants with basic principles associated with the parts and operation of electrical circuits. After completing this course, participants should be able to identify the parts of a basic circuit; describe the relationships between voltage, current, and resistance in a circuit; explain how current flows through series circuits and parallel circuits; describe the basic operation of transformers, fuses, circuit breakers, and solenoids; and explain how voltmeters and ammeters can help operators detect electrical problems.