Under what condition does an AND gate output a logical 1?

Under what condition does an AND gate output a logical 1?

• A. When at least one input is logical 1
• B. When all inputs are logical 1
• C. When all inputs are logical 0
• D. When no inputs are logical 1

Answer: (B)

An AND gate outputs a logical 1 only when all of its inputs are logical 1. This behavior is based on the fundamental operation of the AND gate, which requires a true (1) condition for each input to produce a true (1) output. If even one input is logical 0, the AND gate will output logical 0, reflecting the gate's requirement for all conditions to be satisfied to achieve a high output. This property ensures that only when all contributing inputs signal a positive condition does the AND gate yield a positive result, reinforcing its role in digital circuitry as a standard for condition verification before proceeding to the next stage in binary operations. Therefore, the condition under which an AND gate outputs a logical 1 is indeed when all inputs are logical 1.

An AND gate outputs a logical 1 only when all of its inputs are logical 1. This behavior is based on the fundamental operation of the AND gate, which requires a true (1) condition for each input to produce a true (1) output. If even one input is logical 0, the AND gate will output logical 0, reflecting the gate's requirement for all conditions to be satisfied to achieve a high output. This property ensures that only when all contributing inputs signal a positive condition does the AND gate yield a positive result, reinforcing its role in digital circuitry as a standard for condition verification before proceeding to the next stage in binary operations. Therefore, the condition under which an AND gate outputs a logical 1 is indeed when all inputs are logical 1.