Conductivity of a conductor, Chemical Engineering

Assignment Help:

In what important respect does the conductivity of a conductor differ from that of an intrinsic Semiconductor.          

It is well known that the conductivity of a conductor is much superior to that of the intrinsic semi-conductor. In an intrinsic semiconductor the number of electrons in the conduction band is eqivalent to the number of holes in the valence band at room temperature and there exists an Energy Gap among the conduction band and valence band which doesn't permit charge carriers to move freely and therefore their conductivity is low. 

A conductor such as a metal has high conductivity. The conductivity of a semiconductor is commonly intermediate, but varies widely under dissimilar conditions, such as exposure of the material to electric fields or exact frequencies of light, and, most important, with temperature and composition of the semiconductor material.

 


Related Discussions:- Conductivity of a conductor

What are the functions of oxide layer in high quality ic, What are the func...

What are the functions of oxide layer in high quality IC? Explain.  Silicon has the unique ability to be oxidized into silica, which makes a chemically stable, protective and i

Material and energy balances, Wet air containing 4.0 mole% water vapor at 7...

Wet air containing 4.0 mole% water vapor at 76°F and 14.8 psia is passed through a column of calcium chloride pellets. The pellets absorb 97% of the water and none of the other con

Name of some common conducting materials, The various common conducting mat...

The various common conducting materials used are: 1)  Copper 2)  Aluminium 3) Tungsten

Feasibility survey report of Dimethyl ether, Why do we need to produce of D...

Why do we need to produce of Dimethyl ether? Today''s and future demands and supplies...Who are the consumers? (Consumer from industry and consumer''s habit).Safety precautions of

Determine the area required for the evaporator, A single-effect evaporator ...

A single-effect evaporator is used to concentrate 60000 kg h -1 of a 40 wt % NaOH solution which is fed to the evaporator at 40°C. The concentrated liquid is a 55 wt % NaOH soluti

Procedure classifying and handling of hazardous, ACTIVITY 1 to classify ha...

ACTIVITY 1 to classify hazardous chemicals based on the information given on the labels Requirements Bottles containing chemicals (generally used in a lab) = 20 in number.

REGULA FALSE METHOD, FIND THE REAL ROOT OF xexp^x=3 regula falsemethod corr...

FIND THE REAL ROOT OF xexp^x=3 regula falsemethod correct the three decimal placess

Polymers, merits and demerits of free radical

merits and demerits of free radical

Adsorption and membrane processes, Zeolites are used to adsorb a wide range...

Zeolites are used to adsorb a wide range of solutes from vapour and gas streams. What is it about their structure that makes them suitable for selective adsorption? What isotherm(s

What do you understand by wet bulb globe temperature, What do you understan...

What do you understand by Wet bulb Globe temperature? Wet bulb globe temperature index is used to measure the sultriness of environment. Sultriness is calculated on the basis o

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