Practice Next Example With Practical Source Resistance (51.2) - Common Base and Common Gate Amplifiers (Contd.) : Numerical Examples (Part A)

Practice: Next Example with Practical Source Resistance

Lesson 51.2Common Base and Common Gate Amplifiers (Contd.) : Numerical Examples (Part A)

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8 questions

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6 questions · about 4 min · pass mark 70%. Hints available.
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2 questions · about 1 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is the voltage gain of a common base amplifier if the transconductance is 30 mS and the load resistance is 2kΩ?
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Multiply transconductance by resistance to get gain.
Question 2.
Define input impedance in the context of common base amplifiers.
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Think about how it affects the signal source.
3Question 3.
What is typically true about the input impedance of a common base amplifier?
- Low
- High
- Medium
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Think about signal interaction with the circuit.
4Question 4.
True or False: The upper cutoff frequency depends on the device's source resistance.
- True
- False
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Remember how resistance affects signal clarity.
Question 5.
A common base amplifier must maintain a voltage gain of 150 with source resistance of 5kΩ. If the desired load resistance is 1kΩ, calculate the required transconductance.
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Adjusting R_C will be key to achieving the desired outcome.
Question 6.
How will increasing source resistance impact the upper cutoff frequency in a common base amplifier setup? Demonstrate with calculations.
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Track how different resistances affect your frequency response.

4 more questions in this section. Enroll free to practise them all.