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Questions and Answers
Which of the following is the symbol for an NPN transistor?
Which of the following is the symbol for an NPN transistor?
- D
- A (correct)
- B
- C
Which of the following is an application of a transistor?
Which of the following is an application of a transistor?
- Heating element
- Induction motor
- Loudspeaker (correct)
- Refrigerator
Why is biasing required in a transistor?
Why is biasing required in a transistor?
- To decrease the resistance
- To control the flow of current (correct)
- To increase the voltage
- To amplify the signal
What is the relationship between α and β in a transistor?
What is the relationship between α and β in a transistor?
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What is the Pin diagram of IC741 used in?
What is the Pin diagram of IC741 used in?
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Study Notes
Transistors
- The symbol for an NPN transistor is
- Transistors have various applications, including amplification, switching, and voltage regulation
- Biasing is required in a transistor to establish a stable operating point, allowing it to function correctly
- In a transistor, α (alpha) is the current gain in common base configuration, and β (beta) is the current gain in common emitter configuration, where β = α / (1 - α)
IC741
- The Pin diagram of IC741 is used in operational amplifiers (op-amps)
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