Are Relays the Electrical Equivalent of Mechanical Switches?

[Femme_physics]

Are relays basically switches that are turned on by a certain minimum voltage? They are the electrical alternative to mechanical switches (or buttons)?..

 

[Kholdstare]

Yes you got it correct. As they are electrically controlled they make automated systems.

 

[Femme_physics]

Ah, simple. I wish most written explanations would just start with that line. :) Much appreciated the confirmation.