Question

To get an output $y=1$ from the circuit shown, the inputs $A$, $B$ and $C$ must be respectively

• A. $0,1,0$
• B. $1,0,0$
• C. $1,0,1$
• D. $1,1,0$

Answer 1

The correct option is C $1,0,1$

AND gate produces output as $1$ only when both of its inputs are $1$, and OR gate produces output as $1$ when either of its input is $1$.

Thus to get an output $Y=1$, input $A$ must be $1$, $B$ must be $0$ and $C$ must be $1$.