Podcast
Play an AI-generated podcast conversation about this lesson
Questions and Answers
What is the primary function of a thermionic tube or thermionic valve?
What is the primary function of a thermionic tube or thermionic valve?
- Control of electric current flow in a low vacuum
- Acceleration of electrons from anode to cathode
- Signal amplification and current rectification (correct)
- Detection of light intensities
How does a vacuum phototube achieve electron emission?
How does a vacuum phototube achieve electron emission?
- Through thermionic emission
- By heating the cathode
- Through the photoelectric effect (correct)
- By accelerating electrons from the cathode to the anode
Who invented the simplest vacuum tube, the diode?
Who invented the simplest vacuum tube, the diode?
- Nikola Tesla
- Thomas Edison
- John Ambrose Fleming (correct)
- Albert Einstein
In a vacuum tube, in which direction do electrons flow?
In a vacuum tube, in which direction do electrons flow?
Signup and view all the answers
What is the main function of a vacuum tube?
What is the main function of a vacuum tube?
Signup and view all the answers
