66.6.3 - Expression of Voltage Gain
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Practice Questions
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Define voltage gain in your own words.
💡 Hint: Think about it as an amplification factor.
What does transconductance (g_m) measure?
💡 Hint: Consider its role in amplifier performance.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main advantage of using active loads in amplifiers?
💡 Hint: Consider what happens to the load characteristics.
True or False: Voltage gain is always a positive value.
💡 Hint: Think about how phase inversion works.
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Challenge Problems
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Design a basic common emitter amplifier circuit with an active load, aiming for a voltage gain of 50. Specify resistor values and calculate the required transconductance.
💡 Hint: Use A_v = g_m * R_C and rearrange to find required parameters.
Evaluate the impact of temperature on both active and passive loads in amplifiers. Describe how the operational parameters change and affect overall gain.
💡 Hint: Consider how semiconductor behavior changes with temperature.
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