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

Explain mask alignment and exposure, Mask Alignment and Exposure One of...

Mask Alignment and Exposure One of the most significant steps in the photolithography process is mask alignment. A mask or "photomask" is a square glass plate with a patterned

Edta, how to find hardness of water by edta

how to find hardness of water by edta

A bugs life, Whats the lifetime of a bugg?

Whats the lifetime of a bugg?

Characteristics of ferro-electric materials, What are the chief characteris...

What are the chief characteristics of ferro-electric materials Ferroelectric materials have following characteristics: a)  They have a huge dielectric constant which is non-

Formox process, what is the order of reaction of formox process for product...

what is the order of reaction of formox process for production of formaldehyde from methanol and what is the value of rate constant k.

Physics, given the displacement vectors A(3^i-4^j+4^k)m and B(2^i+3^j-7k)m,...

given the displacement vectors A(3^i-4^j+4^k)m and B(2^i+3^j-7k)m,find the magnitudes of the vectors (a)C=A+B and (b)D=2A-B,also expressing each in terms of its rectangular compone

Number of rooms their size and allocation, Number of rooms, their size and ...

Number of rooms, their size and allocation: Count the number of rooms including ancillaries (if any). Estimate their size and note the allocation of the main lab, preparatory room

Distinguish between intrinsic and extrinsic semiconductor, Distinguish betw...

Distinguish between intrinsic and extrinsic semiconductor. In intrinsic semiconductors, the conduction is because of the intrinsic processes characteristics of the crystal, wit

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