Title: Define electrical relays.
Course: Electronics Technology (17101-II) > Section: Understanding Digital Logic Systems

Definition should include the concept that electrical relays are electrical switches that open and close under the control of other electrical circuits. Electronic relays are able to control an output circuit of higher power than the input circuit. Therefore, power relays can be considered to be, in a broad sense, a form of an electrical amplifier.

Process/Skill Questions:

- What does it mean that power relays can be considered an electrical amplifier?
- Why are electrical relays important?