Question

Which of the following logic gates produces a LOW output when a HIGH input is applied?

• A. AND gate
• B. OR gate
• C. NOT gate
• D. NAND gate

Hint:

The NAND gate is the complement of the AND gate. It is widely used because of its versatility and simplicity in implementing various logic functions.

Answer 1

The Correct Option is D

A logic gate produces an output based on its input values. The behavior of the different gates with respect to HIGH and LOW inputs are: - AND gate: The output is HIGH only when all inputs are HIGH. If at least one input is LOW, the output will be LOW. - OR gate: The output is HIGH if at least one of the inputs is HIGH. - NOT gate: This is a unary gate that inverts the input. If a HIGH input is applied, it produces a LOW output, and if a LOW input is applied, it produces a HIGH output. - NAND gate: This is the inverse of the AND gate. It produces a LOW output only when both inputs are HIGH. For all other combinations, the output is HIGH. Thus, the NAND gate produces a LOW output when both inputs are HIGH.