PowerPoint Presentation Thermionic emission If a tungsten filament is heated to about 2000 o C, some of the electrons have sufficient kinetic energy to escape from the surface…

PowerPoint Presentation Thermionic emission If a tungsten filament is heated to about 2000 o C, some of the electrons have sufficient kinetic energy to escape from the surface…

PowerPoint Presentation Thermionic emission If a tungsten filament is heated to about 2000 o C, some of the electrons have sufficient kinetic energy to escape from the surface…

The nucleus is made up of protons (p+) and neutrons (no) and is surrounded by rings of orbiting electrons (e-) Subatomic particle Relative mass Relative charge Proton 1 +1…

What is Solid State Physics? Branislav K. Nikolić Department of Physics and Astronomy, University of Delaware, U.S.A. PHYS 624: Introduction to Solid State Physics http://www.physics.udel.edu/~bnikolic/teaching/phys624/phys624.html…