Practice Analog Electronic Circuits - 88.1 | 88. Numerical examples on current mirror and its applications (Part-C) | Analog Electronic Circuits - Vol 4
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88.1 - Analog Electronic Circuits

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the role of a current mirror in a circuit?

💡 Hint: Think about why mirroring currents is useful in amplifiers.

Question 2

Easy

Define Early Voltage.

💡 Hint: Consider its impact on transistor behavior.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the purpose of a current mirror in amplifier circuits?

  • To amplify voltage
  • To copy and maintain current
  • To decrease resistance

💡 Hint: Think about how current mirrors assist in ensuring steady currents.

Question 2

True or False: The early voltage affects the output current of transistor in a linear fashion.

  • True
  • False

💡 Hint: Consider how voltage impacts current behavior in your understanding of circuits.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given two matched transistors in a current mirror, if one transistor has a beta of 100 and the other 120, analyze how this mismatch affects output current when the collector current is set at 1 mA.

💡 Hint: Evaluate based on the proportions created by their betas.

Question 2

Design a common emitter amplifier using a current mirror with a target gain of 1000. Discuss which transistor parameters you would need to focus on to achieve this.

💡 Hint: Draw out your circuit to visualize how currents will need to flow and how adjustments will impact gain.

Challenge and get performance evaluation