In a NAND logic gate, what condition results in an output of 0?

In a NAND logic gate, the output is determined by the combination of its two inputs. The NAND gate produces an output of 0 only when both inputs are 1. This is the defining characteristic of the NAND gate: it performs the logical operation of AND followed by NOT.

When both inputs are 1, the corresponding condition of the AND operation yields 1. The NOT operation then flips this result to produce an output of 0. For all other combinations of input values—where at least one input is either 0 or both are 0—the NAND gate will result in an output of 1, effectively negating the AND condition.

Understanding this illustrates how NAND gates function in digital circuits, particularly their role in creating more complex logic systems, as they are considered universal gates capable of implementing any logical function when combined appropriately.