Valve & digital electronics: thermionic emission, Physics

Assignment Help:

(i) The procedure of ejection of electrons from a metal surface by the application of heat is known as thermionic emission and emitted electrons are known as thermions and current flowing is known as thermion current.

(ii)Thermions have dissimilar velocities.

(iii)This was discovered by Edison

 


Related Discussions:- Valve & digital electronics: thermionic emission

What is addition reaction, When atoms (or) group of atoms are added, to for...

When atoms (or) group of atoms are added, to form more saturated compound it is known as addition reaction.

What is intramodal dispersion in optical fibres, What is intramodal dispers...

What is intramodal dispersion in optical fibres? Intramodal dispersion (Δτ mat ) Intramodal dispersion is nothing although material dispersion. The velocity dissimilarity of

Electrostatic, Why we are showing work done over a closed path is zero to ...

Why we are showing work done over a closed path is zero to prove that electrostatic forces are conservative

Explain about end rule, Q. Explain about end rule? When glanced from on...

Q. Explain about end rule? When glanced from one end if the current through the solenoid is along clockwise direction the nearer end corresponds to South Pole and the other end

F=ma.., write a program about f=ma

write a program about f=ma

Estimate the heat capacity and constant volume, The molar heat capacity of ...

The molar heat capacity of a gas at constant pressure is 18.7 J mol -1 K -1 .    What is the heat capacity of 9.4  moles of this gas at constant volume ?

Light and sound, Does a piece of glass reflect more light than a piece of p...

Does a piece of glass reflect more light than a piece of paper?

What is incorrect with the principal ray, Question: A person is putting...

Question: A person is putting effort to determine the characteristics of an image formed by a converging lens by means of a ray tracing diagram. The person has sketched one pri

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