Assertion: relay | /r/ObjectUse | used in many applications
Facets:
value: because of their relative simplicity
type: CAUSE
Source sentences:
text: Although they switch faster, use far less electricity, take up a fraction of the space, and cost much less than relays, they generally work with only tiny currents so relays are still used in many applications.
text: There are various types of relays used in many applications to control different amounts of currents and number of circuits.
text: Relays are like remote control switches and are used in many applications because of their relative simplicity, long life, and proven high reliability.