A three input NAND gate with two low inputs and one high input results in which type of output?

Prepare for the Associate Certified Electronics Technician (CET) Exam. Study with challenging multiple choice questions, hints, and explanations. Ensure you're ready for exam day!

In a three-input NAND gate, the output is determined by the inputs according to the logic defined for NAND operation. A NAND gate produces a low output only when all its inputs are high. Conversely, if any input is low, the output will be high.

In the scenario described, there are two low inputs and one high input. This means that not all inputs are high, which satisfies the conditions for the NAND function to yield a high output. Thus, regardless of how many inputs are high or low, as long as one input is low, the result of the NAND operation will always be a high output.

The other answer options do not apply to this situation. A low output would only occur if all inputs were high, which is not the case here. Undefined is not applicable because the gate operates under defined logic rules. Variable would imply that the output could change between different states, but with a specific combination of inputs, the output is consistently high. Therefore, the correct output for the described conditions in a three-input NAND gate is high.

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