Practice Operating Point Calculation (51.1.3) - Common Base and Common Gate Amplifiers (Contd.) : Numerical Examples (Part A)

Practice: Operating Point Calculation

Lesson 51.1.3Common Base and Common Gate Amplifiers (Contd.) : Numerical Examples (Part A)

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9 questions

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

Question 1.
What is the value of the base-emitter voltage drop V_BE used in practical situations?
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Refer to typical BJT characteristics.
Question 2.
How do you compute the emitter voltage in a common base amplifier?
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V_EMITTER = V_BASE - V_BE.
3Question 3.
What is the typical voltage drop across the base-emitter junction of a BJT?
- 0.2V
- 0.6V
- 0.8V
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Think about BJT characteristics.
4Question 4.
True or False: The output impedance of a common base amplifier is mainly determined by R_C.
- True
- False
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Consider the overall circuit configuration.
Question 5.
Given a common base amplifier with V_B = 10 V, V_T = 26 mV, and I_E = 2 mA, calculate g_m and r_π.
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Remember the relationships for small signal parameters.
Question 6.
Analyze the output impedance when the circuit shows R_C=3 kΩ and find the effect on circuit performance.
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Calculate R_out= R_C || r_o with values derived during calculations.

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