This is a lesson and PowerPoint that covers Thermionic Emission (as used in the Maltese Cross Experiment) and should be supported with two recommended demonstrations. The lesson includes example calculations of electron energies and velocities as well as links to uses of CRT’s and thermionic valves that give a basis for homework ideas.
As well as supporting A-Level Physics for many exam boards this lesson is also part of a chapter that covers the optional Turning Points in Physics unit 9 for AQA (Lesson 1 of 13)
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