ZIMSEC O-Level Physics
14.1Thermionic emission
Thermionic emission in ZIMSEC O-Level Physics: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic13 practice questions1 lesson
Overview
Form 4.
Learning objectives
What the syllabus expects you to be able to do.
- 14.1.1Explain that a hot filament emits electrons.
- 14.1.2Describe how these electrons are directed into a beam.
- 14.1.3Describe the effect of a magnetic or electric field on an electron beam.
Lessons
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Thermionic emission and electron beams
28 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Turn Thermionic emission into a strength.
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