Practice Lecture – 88 (88.1.4) - Numerical examples on current mirror and its applications (Part-C)

Practice: Lecture – 88

Lesson 88.1.4Numerical examples on current mirror and its applications (Part-C)

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9 questions

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6 sample questions

Question 1.
What is a current mirror?
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Think about its purpose in maintaining current.
Question 2.
What is the relationship between collector current and biasing resistors?
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Consider how resistors affect current flow.
3Question 3.
What does a current mirror do?
- Provides random current
- Keeps a constant reference current
- Increases voltage
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Think about its primary function in circuits.
4Question 4.
Is the Early voltage important in amplifier design?
- True
- False
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Recall its effect from the lectures.
Question 5.
Given a common emitter amplifier with a collector current of 2.5 mA, calculate the required biasing resistor if Vcc is 12V and assuming the base-emitter drop is 0.7V.
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Use Ohm's law.
Question 6.
Discuss how varying the Early voltage of transistors in a differential amplifier could impact its performance and suggest how to mitigate these effects.
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Think about strategies used in electronics to maintain performance standards.

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