Practice Current Gain Variation (19.1.5) - Linearization of non - linear circuit containing BJT (Contd.)

Practice: Current Gain Variation

Lesson 19.1.5Linearization of non - linear circuit containing BJT (Contd.)

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8 questions

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6 sample questions

Question 1.
What is transconductance?
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Think about the current flow changes in relation to the input voltage.
Question 2.
Define the output conductance.
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Consider how current responds to voltage changes.
3Question 3.
What does transconductance measure?
- Ratio of Output Current to Input Voltage
- Change in Collector Current with change in Base Voltage
- The slope of output current characteristic
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Look for the relationship between collector current and the input voltage.
4Question 4.
True or False: Output conductance affects linearity.
- True
- False
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Think about how circuit performance is influenced by these parameters.
Question 5.
Given the small signal model parameters of a BJT with g_m = 3 mS and r_pi = 2 kΩ, calculate the output voltage gain if the load resistance is 1 kΩ.
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Remember to calculate the parallel resistance first.
Question 6.
A BJT amplifier exhibits a transconductance of 5 mS at an operating point of 10V and 20 µA. How does altering the operating point to 15V affect the transconductance if all other factors remain constant?
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Consult the I-V characteristics of the BJT to evaluate changes.

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