HC Verma Chapter 45 Problem 20

Problem Statement

NOR gate inputs A=0, B=0. Find output.

Key Concepts

NOR gate

Relevant Formulas

Y = (A+B)’

Step-by-Step Solution

Y = (A+B)’ = (0)’ = 1.

Final Answer

Y = 1

Tips and Tricks

NOR output is 1 only when all inputs are 0.

Common Mistakes

Always use SI units. Check energy conservation accounts for all forms.