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Master the World of Vacuum Tubes

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Questions and Answers

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?

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?

Nikola Tesla

Thomas Edison

John Ambrose Fleming (correct)

Albert Einstein

In a vacuum tube, in which direction do electrons flow?

<p>From the cathode to the anode</p> Signup and view all the answers

What is the main function of a vacuum tube?

<p>Controls electric current flow in a high vacuum</p> Signup and view all the answers

Master the World of Vacuum Tubes

Choose a study mode

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Questions and Answers

What is the primary function of a thermionic tube or thermionic valve?

How does a vacuum phototube achieve electron emission?

Who invented the simplest vacuum tube, the diode?

In a vacuum tube, in which direction do electrons flow?

What is the main function of a vacuum tube?

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