Consider the expression Y = P ⨁ Q ⨁ R where P, Q, R are the input variables and Y is the output variable. Y will be logic 0 if

(A) an odd number of input variables are 1

(B) an even number of input variables are 1

(C) an odd number of inputs variables are 0

(D) an even number of input variable are 0

(E) an odd number of input variable between 0 and 1

Choose the correct answer from the options given below:

This question was previously asked in
UGC NET Paper 2: Electronic Science 29 Oct 2022 Shift 1
View all UGC NET Papers >
  1. (B), (C) only
  2. (E), (D) only
  3. (A), (D) only
  4. (B) only

Answer (Detailed Solution Below)

Option 1 : (B), (C) only
Free
UGC NET Paper 1: Held on 21st August 2024 Shift 1
8.7 K Users
50 Questions 100 Marks 60 Mins

Detailed Solution

Download Solution PDF

XOR is a bitwise operation and it stands for "Exclusive OR". It performs logical operations.

The XOR gate is a special type of gate used in different types of computational circuits. The XOR gate is not a basic gate and is constructed by combining it with other logic gates.

The XOR gate is essential when building digital circuits that carry out calculations and arithmetic operations. Especially adders and half adders can operate as controlled inverters or carry bit generators, where one input sends binary data and the other receives a control signal.

  P  Q R Y
0  0 0 0
0 0 1 1
0 1 0 1
0 1 1 0
1 0 0 1
1 0 1 0
1 1 0 0
1 1 1 1
Latest UGC NET Updates

Last updated on Jun 6, 2025

-> The UGC NET Exam Schedule 2025 for June has been released on its official website.

-> The UGC NET Application Correction Window 2025 is available from 14th May to 15th May 2025.

-> The UGC NET 2025 online application form submission closed on 12th May 2025.

-> The June 2025 Exam will be conducted from 21st June to 30th June 2025

-> The UGC-NET exam takes place for 85 subjects, to determine the eligibility for 'Junior Research Fellowship’ and ‘Assistant Professor’ posts, as well as for PhD. admissions.

-> The exam is conducted bi-annually - in June and December cycles.

-> The exam comprises two papers - Paper I and Paper II. Paper I consists of 50 questions and Paper II consists of 100 questions. 

-> The candidates who are preparing for the exam can check the UGC NET Previous Year Papers and UGC NET Test Series to boost their preparations.

Get Free Access Now
Hot Links: all teen patti teen patti casino real cash teen patti