Introduction to Solids Questions and Answers in PDF Give the free electron model of solids and explain its limitations. Calculate the density of states in the energy range E and E+dE using the free electron model. Explain the band theory of solids. Or Differentiate insulator, conductor, and semiconductors based on band theory of solids. Define semiconductor. … [Read more...] about Introduction to Solids Questions and Answers | Notes

# Engineering Physics

## Quantum Mechanics Questions and Answers | Notes

Quantum Mechanics Questions and Answers in PDF What do you understand by matter waves? Or Discuss the concept of de-Broglie matter waves. Define group velocity and particle velocity regarding a group wave. Or Define particle velocity, group velocity, and phase velocity. Derive the mathematical expression for group and phase velocity. Show that the phase velocity … [Read more...] about Quantum Mechanics Questions and Answers | Notes

## What are various Boolean identities?

What are various Boolean identities? Draw the ‘AND’ circuit using diode logic. How do you prove Boolean identities?, What are the different Boolean algebra rules?, What is De Morgans theorem?, How do you simplify Boolean expression? Laws of Boolean algebra are used for simplifying a complex Boolean expression. The different Boolean laws are discussed as follows : 1. OR … [Read more...] about What are various Boolean identities?

## What is the Basic Logic Gate? Describe the OR, AND, NAND gate with the help of the truth table.

What is the Basic Logic Gate? Describe the OR, AND, NAND gate with the help of the truth table. How ‘NOT’ operation can be performed using a transistor? Describe. What is the difference between and NAND gates? Why do we use NAND gates instead of AND gates? What is the NAND gate truth table? What is an AND gate? What is the symbol of the NAND gate? Why is it called a NAND … [Read more...] about What is the Basic Logic Gate? Describe the OR, AND, NAND gate with the help of the truth table.

## What is a diode? What is the application of it?

What is a diode? Describe the theory of diode operation. What is the application of it? What are the types of diode? List them and draw their symbol. Diode: When a p-type semiconductor and an n-type semiconductor are joined, the device is known as a diode. It has two terminals known as electrodes, one electrode each from p‐region and n‐region hence called diode (Di + … [Read more...] about What is a diode? What is the application of it?