Chapter 10
The discovery of electricity and its use in transferring energy has been the foundation of modern technology. It’s hard to imagine a world without automobiles, computers, or even flashlights. Though they have vastly different functions, all electrical and electronic devices operate due to the movement of subatomic particles called electrons (hence the word electronics).
In this chapter, you will learn the basic principles of electricity and electronic components. By the end of the chapter, you will be able to identify some major circuit components and their functions, perform calculations to determine circuit properties, and understand some of the safety devices used in modern household wiring.
On the CAT-ASVAB, you will have 8 minutes to complete 16 Electronics Information (EI) questions. If you take the paper-and-pencil ASVAB, you will have 9 minutes to complete 20 EI questions.