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 is the phase rule and what does it indicate, What is the phase rule an...

What is the phase rule and what does it indicate? Gibbs' phase rule is the fundamental rule on which phase diagrams are based. It gives the number of degrees of freedom for a g

Calculate the temperature and relative humidity, In a drying system, 600 m ...

In a drying system, 600 m 3 /min of ambient air at 20° C and 50% relative humidity is heated to a temperature of 50°C before passing into the drying chamber. a) What are the spe

Dc applications, The most common DC applications are: Electromagnets a...

The most common DC applications are: Electromagnets and yokes • Relays  • Magnetic shields  • Electrical measuring devices  • Magnetic amplifiers

The hardness of quenched martensite, The hardness of quenched Martensite is...

The hardness of quenched Martensite is First enhances and then remains almost constant as the carbon percentage enhances.

Catalysis, Auto catalysis & induced catalysis

Auto catalysis & induced catalysis

Look, when do the cell get alot of thing in there thing because am confuse ...

when do the cell get alot of thing in there thing because am confuse cause is alot of thing becaus is crazy

Design project , design a falling film evaporator in detail

design a falling film evaporator in detail

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