Practice Voltage Gain Calculation - 47.3.4 | 47. Common Collector and Common Drain Amplifiers (Contd.): Numerical Examples (Part A) | Analog Electronic Circuits - Vol 2
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What does voltage gain represent in an amplifier?

πŸ’‘ Hint: Think about how an amplifier enhances signals.

Question 2

Easy

How is transconductance (g_m) calculated?

πŸ’‘ Hint: Consider the currents and voltages related to the transistor.

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 formula for voltage gain?

  • A_v = V_out / V_in
  • A_v = V_in / V_out
  • A_v = R_out / R_in

πŸ’‘ Hint: Think about how the amplifier transforms the input signal.

Question 2

True or False: A voltage gain of 1 indicates no amplification.

  • True
  • False

πŸ’‘ Hint: Remember what a buffer does to a signal.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Calculate the voltage gain and input impedance for a common collector amplifier given: Ξ² = 120, I_C = 1 mA, and r_o = 150 kΞ©.

πŸ’‘ Hint: Convert I_C to g_m first.

Question 2

In a scenario where the load capacitance increases and source resistance is significant, analyze how this affects the bandwidth of the amplifier.

πŸ’‘ Hint: Remember f_cutoff = 1 / (2Ο€RC); how do varying R and C affect this?

Challenge and get performance evaluation