Logic gateMedium

Question

The figure below depicts the voltage wave forms of binary input signals A and B and the output signal C of a certain logic gate.

The logic gate is

Options

A.AND
B.NAND
C.OR
D.XOR

Solution

[Key Concept: Read the input pair and output in every time interval and match the truth table.]

Step 1: Reading the intervals: A, B = 0 0, 1 1, 0 1, 1 0, 0 0, 1 1 give C = 0, 1, 0, 0, 0, 1.

Step 2: C is 1 only when both inputs are 1; OR fails for 0 1, NAND and XOR fail for 1 1.

Step 3: The gate is AND, Option A.

Create a free account to view solution

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

More Logic gate Questions

Two 4 bits binary numbers, $A = 1101$ and $B = 1010$ are given in the inputs of a logic circuit shown in figure below. T...Which of the following relations is valid for Boolean algebra : -...Which represents NAND gate?...Which of the following relations is valid for Boolean algebra : -...Boolean algebra is essentially based on :...