Preview of practice Voltage Gain Calculation (47.3.4) - Common Collector and Common Drain Amplifiers (Contd.): Numerical Examples (Part A)
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Voltage Gain Calculation

Practice - Voltage Gain Calculation

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What does voltage gain represent in an amplifier?

💡 Hint: Think about how an amplifier enhances signals.

Question 2 Easy

How is transconductance (g_m) calculated?

💡 Hint: Consider the currents and voltages related to the transistor.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

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

💡 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

💡 Hint: Remember what a buffer does to a signal.

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Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

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

💡 Hint: Convert I_C to g_m first.

Challenge 2 Hard

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

💡 Hint: Remember f_cutoff = 1 / (2πRC); how do varying R and C affect this?

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Reference links

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