Logic gateMedium

Question

The output Y for the given inputs A and B to the circuit is :

Options

A.
B.
C.
D.

Solution

Sol. [Key Concept: Simplify the gate output $Y = A \cdot \ B + A' \cdot \ B = (A + A')B = B$, so $Y$ simply reproduces the input-$B$ waveform.]

$$A \cdot B + \overline{A} \cdot B \Rightarrow (A + \overline{A}) \cdot B = B $$Note: In lower gate, input is taken from A as $\overline{A}$ due to node given in the figure.

Create a free account to view solution

View Solution Free
Topic: Logic gate·Practice all Logic gate questions

More Logic gate Questions

Digital circuits can be made by repetitive use of : -...A NAND gate followed by a NOT gate is :-...A two inputed XOR gate produces an output high only when its both inputs are : -...The ouput of an OR gate is connected to both the inputs of a NAND gate. The combination will serve as a :...Refer to the logic circuit given below. For two inputs ( $A = 1,\text{ }B = 1$ ) and ( $A = 0,\text{ }B = 1$ ), output (...