Explain how conduction takes place in insulators, Electrical Engineering

Assignment Help:

With the help of energy bands explain how conduction takes place in insulators.

Insulators: Substance as wood, glass, that do not permit the passage of current through them is termed as insulators. The valence band of these substances is full while the conduction band is fully empty. The forbidden energy gap among valence band and conduction band is very large (8ev) as demonstrated in the figure. Thus, a large amount of energy that is a very high electric field is needed to push the valence electrons to the conduction band. It is the reason, why such materials under ordinary conditions do not conduct at all and are designated like insulators.

1988_Insulators.png

Energy Band Diagrams


Related Discussions:- Explain how conduction takes place in insulators

Explain segment assembler directive, Explain SEGMENT assembler direct...

Explain SEGMENT assembler directive with example. SEGMENT: This directive described to the assembler the start of a segment along with name segment-name. The seg

Switching characteristics, Switching Characteristics The switching  cha...

Switching Characteristics The switching  characteristic  of an IGBT  during  turn on and turn off time all  shown  in the sum of delay time  and rise time gives  the total  tur

Determine impedance - resultant current and power factor, Determine Impedan...

Determine Impedance - Resultant current and Power factor: In series R-L circuit, illustrated in Figure , Determine 1.      Impedance, 2.      Resultant current, 3.

Transformers, AC Operation of an iron core         ...

AC Operation of an iron core         Hence, if a wattmeter were used to measure the power delivered over a full period of the waveform (which will also b

Residential wiring and safety considerations, Q. Residential wiring and saf...

Q. Residential wiring and safety considerations? Residential electric power service commonly consists of a three-wire ac system supplied by the local power company. A distribut

Switching characteristics during turn on , Switching characteristics during...

Switching characteristics during turn on A positive  gate  pulse  between  gate and  cathodeis sufficient to turn  on a thyrisotr. In  this period  thyristor  changes its stat

Define the operation of real mode interrupt, Define the operation of real m...

Define the operation of real mode interrupt. Operation of Real mode interrupt: While the microprocessor completes executing the current instruction, this determines whether a

Define waves and transmission lines, Q. Define waves and transmission lines...

Q. Define waves and transmission lines? In basic circuit theory we neglect the effects of the finite time of transit of changes in current and voltage and the finite distances

What is schokleys equation, Q. What is Schokleys Equation. Find out a relat...

Q. What is Schokleys Equation. Find out a relation between Vgs and Ids? Schokleys Equation is used for defining the relation between the Gate source voltage and the Drain curre

Interrupts, how the interrupts are affected by system rest

how the interrupts are affected by system rest

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