Question

What is the optimum current that is required to operate the Relay Module?

(a) 28 A

(b) 13 A

(c) 210 A

(d) 1 A

The question was asked in class test.

My question is from Relay (Dual Channel) Module topic in chapter Interfacing of Sensors, Actuators, and Other Modules of Arduino

Answer 1

Correct option is (a) 28 A

The best explanation: The current rating on the Relay Module is given so that users can know what is the optimum current that needs to be fed to the module such that the internal electronics is not destroyed by excess current.