Practice Upper and Lower Cutoff Frequencies in Common Source Amplifier - 42.2.6 | 42. Frequency Response of CE/CS Amplifiers Considering High Frequency Models of BJT And MOSFET (Part C) | Analog Electronic Circuits - Vol 2
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Knowledge

42.2.6 - Upper and Lower Cutoff Frequencies in Common Source Amplifier

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Learning

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Define cutoff frequency in your own words.

💡 Hint: Think about where amp signals start losing strength.

Question 2

Easy

What is the purpose of Miller's Theorem?

💡 Hint: What can you use to make complex circuits easier to analyze?

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 calculating the lower cutoff frequency?

  • A) fL = 1/(2π × R × C)
  • B) fU = 1/(2π × R_par × C)
  • C) Av = Vo/Vi

💡 Hint: Think about how frequency interacts with resistance and capacitance.

Question 2

True or False: The upper cutoff frequency is influenced by the input capacitance.

  • True
  • False

💡 Hint: Consider which components play roles at higher frequencies.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A common source amplifier has a lower cutoff frequency of 10 Hz and an upper cutoff frequency of 450 kHz. Given a load capacitance of 10 pF, what would happen to the upper cutoff frequency if this capacitance is increased to 100 pF?

💡 Hint: Consider how higher capacitance affects the circuit's impedance.

Question 2

Discuss how design choices in component values impact the overall frequency response of an amplifier.

💡 Hint: Think about what happens when you change resistances and capacitances in the context of frequency.

Challenge and get performance evaluation