Electronics and Communication Engineering - Digital Electronics - Discussion


A 4 input AND gate is equivalent to

[A]. 4 switches in parallel
[B]. 2 switches in series and 2 in parallel
[C]. three switches in parallel and one in series
[D]. 4 switches in series

Answer: Option D


All the switches have to be closed so that the circuit can be made. In AND gate all the inputs have to be high for output to be high.

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