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Questions and Answers
What were the basic building blocks of electronic circuits before the discovery of the transistor in 1948?
What were the basic building blocks of electronic circuits before the discovery of the transistor in 1948?
- Transistors
- Integrated circuits
- Resistors and capacitors
- Vacuum tubes (correct)
Which type of vacuum tube has three electrodes?
Which type of vacuum tube has three electrodes?
- Tetrode
- Triode (correct)
- Pentode
- Diode
Why is vacuum required in the inter-electrode space of a vacuum tube?
Why is vacuum required in the inter-electrode space of a vacuum tube?
- To decrease the voltage required for operation
- To increase the speed of electrons
- To prevent energy loss of moving electrons due to collision with air molecules (correct)
- To reduce the size of the vacuum tube
In a vacuum tube, from where are the electrons supplied?
In a vacuum tube, from where are the electrons supplied?
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In which direction can the electrons flow in a vacuum tube?
In which direction can the electrons flow in a vacuum tube?
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What is the function of the grid in a triode vacuum tube?
What is the function of the grid in a triode vacuum tube?
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Why is vacuum required in the inter-electrode space of a vacuum tube?
Why is vacuum required in the inter-electrode space of a vacuum tube?
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What is the main difference between a tetrode and a pentode vacuum tube?
What is the main difference between a tetrode and a pentode vacuum tube?
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In which direction can the electrons flow in a vacuum diode?
In which direction can the electrons flow in a vacuum diode?
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What supplies the electrons in a vacuum tube?
What supplies the electrons in a vacuum tube?
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