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How much time does it take for the relay module to react to a change?

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How much time does it take for the relay module to react to a change?

(a) 5 to 10 ms

(b) 12 to 10 min

(c) 52 to 100 ms

(d) 5 to 10 s

The question was posed to me in unit test.

This is a very interesting question from Relay (Dual Channel) Module topic in portion Interfacing of Sensors, Actuators, and Other Modules of Arduino

1 Answer

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The correct answer is (a) 5 to 10 ms

The explanation: 5 to 10 ms is the correct value of the time needed for the module to react to any command given to it by an external voltage source or micro-controller.

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