22. In negative logic, the logic state 1 corresponds to 15 ?10 037
23. The output of a 2-input OR gate is zero only when its
24. An XOR gate produces an output only when its two inputs are
26. For getting an output from an XNOR gate, its both inputs must be
27. In a certain 2-input logic gate, when A = 0, B = 0, then C= I. It must be gate.
28. . Boolean algebra is essentially based on
