Before beginning a detailed discussion of the various electrical components and their uses, a discussion of the basics of measuring the three major electrical quantities is in order. In Chapter 1 the ...

Electricity means the presence or motion of electrical charge. When the charge is moving from its source (origin) to sink ...

The purpose of electrical boxes Wiring connections—where wires join an outlet, switch or other wires—must be inside an ...

Electricity means the presence or motion of electrical charge. When the charge is moving from its source (origin) to sink ...

When the charge is moving from its source (origin) to sink (destination), it's called electrical current. Electrical charge that simply dwells on an object is referred to as static electricity.