Question on thermionic emission

Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
Sign up Log in
1 reply · 1K views
goran d
Messages
31
Reaction score
0
The electron needs greater energy than the work function in order to escape the material. But when it does escape, does it subtract the work function from it's kinetic energy or not?
 

Discussion

Physics news on Phys.org
It does indeed expend the work function's worth of energy in escaping the material.
 

Similar threads

Undergrad Thermionic emission and current density

  • Abimbola1987
  • · Replies 25 ·
  • Electromagnetism
Replies
25

Graduate How does thermionic emission work?

  • Helloworld75344
  • · Replies 2 ·
  • Mechanics
Replies
2

Undergrad Filament for thermionic emission in open air

  • Gideon Y
  • · Replies 7 ·
  • Atomic and Condensed Matter
Replies
7

High School Related to - Thermionic emission

  • Wasif Shah
  • · Replies 8 ·
  • Other Physics Topics
Replies
8

Graduate Thermionic Emission Effects on Surfaces

  • 123kid
  • · Replies 2 ·
  • Other Physics Topics
Replies
2

Undergrad Thermionic Emission: What Causes Electrons to be Emitted?

  • Cheman
  • · Replies 2 ·
  • Thermodynamics
Replies
2

Graduate Thermionic Emission: Questions Explained

  • chimay
  • · Replies 6 ·
  • Atomic and Condensed Matter
Replies
6

Graduate Thermionic emission at same temperature

  • goran d
  • · Replies 1 ·
  • Quantum Physics
Replies
1

High School Cathode ray tube- thermionic emission

  • Nemika
  • · Replies 4 ·
  • Other Physics Topics
Replies
4

Percent change in thermionic emission

  • benben312000
  • · Replies 3 ·
  • Engineering and Comp Sci Homework Help
Replies
3