Question

A logic gate which has an output ${}^{\prime }{1}^{\prime }$ only when the inputs are complement to each other is.

• A. AND
• B. NAND
• C. NOR
• D. EXOR

Answer 1

The correct option is D EXOR

From the truth table of each gate, we can get only output 1 for complement inputs for $EXOR$ gate.

Here, when $A=0,B=1\Rightarrow$ output $=1$ and when $A=1,B=0\Rightarrow$ output $=1$