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Questions and Answers
What is the primary function of a diode?
What is the primary function of a diode?
- Generates current in one direction
- Conducts current primarily in one direction (correct)
- Conducts current in both directions equally
- Resists current flow in both directions
What is the most commonly used material for semiconductor diodes today?
What is the most commonly used material for semiconductor diodes today?
- Iron
- Silicon (correct)
- Aluminum
- Copper
Who made the discovery of asymmetric electrical conduction across the contact between a crystalline mineral and a metal?
Who made the discovery of asymmetric electrical conduction across the contact between a crystalline mineral and a metal?
- Marie Curie
- Thomas Edison
- Nikola Tesla
- Ferdinand Braun (correct)
What is the characteristic of the current-voltage relationship in a semiconductor diode?
What is the characteristic of the current-voltage relationship in a semiconductor diode?
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What is the primary difference between a semiconductor diode and an obsolete thermionic diode?
What is the primary difference between a semiconductor diode and an obsolete thermionic diode?
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Study Notes
Diode Fundamentals
- The primary function of a diode is to allow current to flow in one direction while blocking it in the other.
Materials Used in Diodes
- Silicon is the most commonly used material for semiconductor diodes today.
History of Diodes
- Ferdinand Braun made the discovery of asymmetric electrical conduction across the contact between a crystalline mineral and a metal.
Current-Voltage Relationship
- The characteristic of the current-voltage relationship in a semiconductor diode is nonlinear, with the current increasing rapidly as the voltage increases.
Comparison of Diodes
- The primary difference between a semiconductor diode and an obsolete thermionic diode is the method of current flow, with semiconductor diodes using semiconductor materials and thermionic diodes using a heated filament to generate current.
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