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 the mass of the planet newtonia, On the planet Newtonia, a simple p...

On the planet Newtonia, a simple pendulum having a bob with mass 1.25 kg and a length of 185.0 cm takes 1.42 seconds, when released from rest, to swing through an angle of 12.5 deg

What distance do we utilize for the distance, Presume you are asked to find...

Presume you are asked to find the electric field at point P whose coordinates are (L, y) for the case of a consistent line segment of charge which extends from x=0 to x=L on the x

DIGITAL SIGNAL PROCESSING, REALIZE THE FOLLOWING FIR SYSTEM IN CASCADE FORM...

REALIZE THE FOLLOWING FIR SYSTEM IN CASCADE FORM REALIZATION

How much kinetic energy is lost - friction, A dartboard with a mass of 2.20...

A dartboard with a mass of 2.20 kg is suspended from the ceiling such that it is initially at rest. A 0.030-kg dart is thrown at the dartboard with a velocity of 1.3 m/s. A

Thermal equillibrium, a column of water contains fine metal particles of ra...

a column of water contains fine metal particles of radius 2*E(-8) m, which are in thermal equillibrium at 298 K. if there are 1000 particles per unit volume at a given height,how m

Acceleration, when an object is dropped, what is its acceleration at the mo...

when an object is dropped, what is its acceleration at the moment of release? Explain with reasoning.

nuclear radiation detectors and dielectrics, What do you mean by dead time...

What do you mean by dead time in GM counter? Draw a neat diagram at GM counter and explain its working. Mention some of its applications. Give basic principle of Geiger-Muller coun

What is the intensity of the light, Que: Completely un-polarized light ...

Que: Completely un-polarized light of intensity Io is occurrence on a polarizer whose polarization direction makes an angle of 15.0 degrees amid respect to the vertical. What i

Volt meter, Ask question #Minimum 200 words accepted#

Ask question #Minimum 200 words accepted#

Define perfectly elastic body, A body which gets its real configuration imm...

A body which gets its real configuration immediately and completely after the removal of deforming force from it, is called as perfectly elastic body. Phosphor bronze and quartz ar

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