Practice Input Resistance Calculation - 60.1.3 | 60. Multi-Transistor Amplifiers (Contd.): Numerical Examples (Part C) | Analog Electronic Circuits - Vol 3
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is the basic function of a common collector amplifier?

πŸ’‘ Hint: Remember its role in interfacing with high-resistance sources.

Question 2

Easy

If Q1 has a current gain (Ξ²) of 100, what is the base current for an emitter current of 1 mA?

πŸ’‘ Hint: Use the formula relating emitter current and base current through Ξ².

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 primary purpose of the common collector stage in an amplifier?

  • To provide low input resistance
  • To maintain high input resistance
  • To increase output current

πŸ’‘ Hint: Consider the input characteristics of high source resistance.

Question 2

The input resistance of a CE amplifier is affected by which key factor?

  • True
  • False

πŸ’‘ Hint: Think about how amplifier configuration affects loading effects.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given a circuit with R1 = 47 MΩ and Ξ² = 150, if the emitter current of Q1 is 1.2 mA, calculate the input resistance.

πŸ’‘ Hint: Consider how to combine resistance values properly.

Question 2

In a CE configuration with a Darlington pair, calculate the input impedance and comment on the resulting bandwidth.

πŸ’‘ Hint: The trade-off is crucial in amplifier design decisions.

Challenge and get performance evaluation