The output of an OR gate is connected to both the inputs of a NAND gate, the combination will serve as a
The output of an AND gate is connected to both the inputs of a NOR gate, then this circuit will act as a
The inputs of a NAND gate are connected together. The resultant circuit is
The following figure shows a logic gate circuit with two inputs A and B and the output C. The voltage wavefront of A, B and C are as shown in the figure. The logic circuit gate is