Skip to main content
Workforce LibreTexts

1.7: Transformers

  • Page ID
    • Chargers-Logo-CircleISO_F.png
    • Contributed by Camosun College
    • Sourced from BCCampus (Download for free at


    The transformer shown in Figure 20 is used to increase or decrease voltage in an electric circuit. Transformers are rated in volts and amps for specific applications. A typical application is a doorbell circuit, transforming 120 volts AC to 24 volts AC.

    Figure \(\PageIndex{1}\): (CC BY-NC-SA; BC Industry Training Authority)
    1. Transformer