Practice Cutoff Frequencies And Bandwidth (29.3.2) - Common Emitter Amplifier (contd.) - Numerical examples (Part B)

Practice: Cutoff Frequencies and Bandwidth

Lesson 29.3.2Common Emitter Amplifier (contd.) - Numerical examples (Part B)

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9 questions

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6 sample questions

Question 1.
Define cutoff frequency in the context of amplifiers.
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Think about how gain decreases as frequency changes.
Question 2.
What is bandwidth?
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It's related to the operating range of an amplifier.
3Question 3.
What happens at the lower cutoff frequency?
- The gain is constant
- The gain starts to fall
- The gain is maximum
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Consider the pattern of gain changes with frequency.
4Question 4.
True or False: The bandwidth of an amplifier can be defined as the difference between the upper and lower cutoff frequencies.
- True
- False
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Reflect on the definitions of cutoff frequencies.
Question 5.
Calculate the cutoff frequencies for an amplifier with a resistor of 1k ohm and a capacitor of 10 microfarads. Show your work.
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Remember to convert units where necessary.
Question 6.
Design a low-frequency amplifier with a desired cutoff frequency of 100 Hz. What resistance and capacitance values could you use?
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Consider common standard capacitor values when finalizing your design.

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