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

Find the thevenin equivalent of the circuit, (a) Find the Thevenin equivale...

(a) Find the Thevenin equivalent of the circuit shown in Figure (a) at the terminals A-B. (b) Determine the impedance that must be connected to the terminals A-B so that it is m

Critical field circuit resistance and critical speed, Q.   Define and expla...

Q.   Define and explain the critical field circuit resistance and critical speed of a DC shunt generator.   Ans. The OCC and R - line for a DC shunt generator. As, R f is

Core electron binding energies, Perform a Hartree-Fock geometry optimizatio...

Perform a Hartree-Fock geometry optimization calculation of butadiene using a minimal basis set. Repeat with the 6-311G(d,p) basis set, using the optimized minimal basis set geomet

Why digital signal processing require specialized hardware, Why does digita...

Why does digital signal processing require specialized hardware? A) It needs to perform analog as well as digital functions. B) General-purpose microprocessors cannot perfor

Mechanical structure of depletion type mosfet, Mechanical Structure of Depl...

Mechanical Structure of Depletion Type MOSFET The mechanical structure of this type of device is displayed in figure. In an IC, we would locate two n-type regions side by side

Basic characteristics and operation of mosfet, Q. Basic Characteristics and...

Q. Basic Characteristics and Operation of MOSFET ? In Figure the gate-to-source voltage is set to zero volts by the direct connection from one terminal to the other, and a volt

Gunn diode, write the note on gunn diode and ats applications

write the note on gunn diode and ats applications

14. What is a vector impedance meter? State its application., What is a vec...

What is a vector impedance meter? State its application.

Sketch the waveform of the circuit , The following four output displays of ...

The following four output displays of an oscilloscope (right hand side, below) show waveforms of a biased diode ac circuit. An example is illustrated on the left hand side. VIN is

Unconditional call instruction - call instruction , Unconditional Call Inst...

Unconditional Call Instruction CALL ( Unconditional Call) Instructions :This  instruction calls the subroutine program stored at memory  location specified  in the  instruction

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