Density of energy state, Physics

Assignment Help:

Q. What is the density of energy states in metals? Obtain an expression for the density of states for free electron gas in metals.

 

Ans. Density of energy state is defined as the number of available energy states per unit energy range per unit volume.

To calculate density of energy state, let us introduce a 3 D space defined by. Each point in this space would represent an energy state and is associated with a volume element of one unity. Now if we draw a sphere of radius n in this space then each energy state defined by

The factor 1/8 accounts for the fact that only positive integers are allowable and thus only one octant of the sphere is available. 

 

 


Related Discussions:- Density of energy state

ASSIGNMENT, VRIFY THE CURRENT DIVIDER RELATION AND VOLTAGES DIVIDER RELATIO...

VRIFY THE CURRENT DIVIDER RELATION AND VOLTAGES DIVIDER RELATION

Physics Problem, Two boxes are in contact on a flat table. A force of 75.8 ...

Two boxes are in contact on a flat table. A force of 75.8 N is applied horizontally to the first box, which in turn pushes horizontally against the second box. The mass of the firs

Stefan-boltzmann constant, Stefan-Boltzmann constant; sigma (Stefan, L. Bol...

Stefan-Boltzmann constant; sigma (Stefan, L. Boltzmann) The constant of proportionality exist in the Stefan-Boltzmann law. It is equivalent to 5.6697 x 10 -8 W/m 2 /K 4 .

Numbers, John is traveling north at 20 meters/second and his friend Betty ...

John is traveling north at 20 meters/second and his friend Betty is traveling south at 20 meters/second. If north is the positive direction, what are John and Betty''s speeds?

What is the effective voltage in the primary coil, A step-up transformer ha...

A step-up transformer has a primary coil having of 152 turns and a secondary coil with 3040 turns. The primary coil receives a peak voltage of 98 V. a. What is the effectiv

Define cathode rays, Cathode rays, discovered by Sir Willium Crooke are the...

Cathode rays, discovered by Sir Willium Crooke are the stream of electrons. They may be given by using a discharge tube containing gas at a low pressure of the order of 10-2 mm of

Control structure amd its parts(if, i have to make an assignment on this to...

i have to make an assignment on this topic plz suggest me how can i make this?

Explain torque, A 92-kg man uses a 3.05-m board to attempt to move a boulde...

A 92-kg man uses a 3.05-m board to attempt to move a boulder, as shown in the diagram below. He pulls the end of the board with a force equal to his weight and is able to move it t

Define surface contaminations (wisconsin-madison), Define Surface Contamina...

Define Surface Contaminations (Wisconsin-Madison)? A surface scientist wishes to remain an exposed surface "clean" (≤ 0.05 adsorbed monolayer) for an experiment lasting for tim

Superposition principle, Superposition principle The general idea is t...

Superposition principle The general idea is that, while a number of influences are working on a system, the total influence on that system is just the sum of the individual in

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd