Practice Focus On Numerical Examples (80.2.1) - Differential Amplifier : Analysis and Numerical Examples (Contd.)(Part B)

Practice: Focus on Numerical Examples

Lesson 80.2.1Differential Amplifier : Analysis and Numerical Examples (Contd.)(Part B)

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9 questions

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6 sample questions

Question 1.
Calculate the base current if R1 = 570 kΩ and V = 12 V.
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Use the formula I = V/R.
Question 2.
What is the differential mode gain if A = 8?
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It is stated directly in the context.
3Question 3.
What is a differential amplifier primarily used for?
- Amplifying a single signal
- Amplifying the difference between two signals
- Sensing current
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Remember the main function of the amplifier.
4Question 4.
Is β for BJTs typically greater than 100?
- True
- False
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Recall the typical performance characteristics of BJTs.
Question 5.
Consider a differential amplifier circuit with input voltages of 0.5V and 0.7V. Calculate the output voltage if the differential gain is 8.
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Use the formula for differential gain with the provided inputs.
Question 6.
If the common mode signal is Vcm = 0.02V and the common mode gain is -0.02, find the output due to common mode voltage.
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Considering how common mode gain interacts with its input.

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