Written and presented by Jim Johnson, this HVACR technician training course presents an overview of the fundamentals of schematic diagrams. With a firm understanding of the fundamentals of wiring ...

The scientists are going to show us how electrical energy flows around an electrical circuit. Title: Circuit symbols This is what a battery looks like as a circuit symbol. Electricity can travel ...

Electrical components, like motors close motorA device which spins when current flows through it. Motors are used in fans, food processors and many other devices. and lamps close lampA component which ...