What will be the output of a three-input NAND gate with two low inputs and one high input?

Prepare for the Associate Certified Electronic Technician Exam. Utilize flashcards and multiple choice questions with detailed explanations to enhance your understanding. Excel in your upcoming exam!

A three-input NAND gate produces an output that is the opposite of the AND gate. For an AND gate, the output is high only when all inputs are high; conversely, for a NAND gate, the output is low only when all inputs are high.

In this scenario, when two of the inputs are low (0) and one input is high (1), the logic operation of the NAND gate can be evaluated as follows:

The AND operation would evaluate the inputs as follows: 0 AND 0 AND 1 = 0. Because the output of the AND operation is low (0), the NAND gate will invert this result, producing a high output (1). Therefore, the correct output for the NAND gate when two low inputs and one high input are provided is high.

This understanding is key in digital logic, particularly when designing circuits or troubleshooting configurations that involve NAND gates. The operation of NAND gates makes them widely used in digital electronics due to their ability to create any logic function.

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