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

Energy transformation on a roller coaster, Energy Transformation on a Rolle...

Energy Transformation on a Roller Coaster A roller coaster ride is a thrilling experience that includes a wealth of physics. Part of the physics of a roller coaster is the phys

Wavelenght of violet and indigo is small than that of blue, The color of sk...

The color of sky is blue but the wavelenght of violet and indigo is small than that of blue.Then why the color of sky is  blue? Ans) The particles in the atmosphere are able to

Kinematics, IF a football player kicks a football so that it spends 3.0 sec...

IF a football player kicks a football so that it spends 3.0 seconds in the air and travels 50m, then find the velocity and angle of the kick.

Explain the initial and the final locations of the charge, A charge of 2.00...

A charge of 2.00x 10 -6 C is moved against a constant electric field. If 4.50 x 10 -4 J of work is done on the charge. what is the potential difference between the initial an

Biophysics, please tell me some topics of biophysics.

please tell me some topics of biophysics.

Faradays law of electromagnetic induction, What is Faraday's law of electro...

What is Faraday's law of electromagnetic induction? Determine its differential form.

Production of audio and video signals, Production of audio and video signal...

Production of audio and video signals Iconoscope is a type of camera consisting of a cathode ray beam and a photoelectric cell. The picture is scanned with the help of iconosco

Which is most malleable, The most malleable, ductile low resistivity materi...

The most malleable, ductile low resistivity material is (A) Copper.  (B) Aluminium. (C) Silver.    (D) Iron. Ans: The most malleable, ductile low resistivity mater

What are eddy currents, What are eddy currents? State how their effect is d...

What are eddy currents? State how their effect is decreased in transformers. (b) Verify the ef?ciency of a 15 kVA transformer for the following conditions: (i) full load, un

Dulong-petit law, Dulong-Petit law (P. Dulong, A.T. Petit; 1819) The mo...

Dulong-Petit law (P. Dulong, A.T. Petit; 1819) The molar heat capacity is around to equal to the three times the ideal gas constant: C = 3 R.

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