Which logic circuit's output is 1 only when all inputs are 1?

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Study for the AAMI Certified Associate in Biomedical Technology Exam. Study with flashcards and multiple choice questions, each question has hints and explanations. Get ready for your exam!

Multiple Choice

Which logic circuit's output is 1 only when all inputs are 1?

Explanation:
The main idea is that the output is true only when every input is true. That behavior is exactly what an AND gate does: it outputs 1 if all inputs are 1; if any input is 0, the output becomes 0. This is because AND represents the logical conjunction of all inputs. The other options don’t fit: NAND is the inverse of AND and would output 1 most of the time except when all inputs are 1; OR outputs 1 if any input is 1; NOT inverts a single input. So the circuit described is the AND gate.

The main idea is that the output is true only when every input is true. That behavior is exactly what an AND gate does: it outputs 1 if all inputs are 1; if any input is 0, the output becomes 0. This is because AND represents the logical conjunction of all inputs. The other options don’t fit: NAND is the inverse of AND and would output 1 most of the time except when all inputs are 1; OR outputs 1 if any input is 1; NOT inverts a single input. So the circuit described is the AND gate.

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