88.3.2 - Finding Currents at V = 11.4V
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Practice Questions
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What is a common emitter amplifier?
💡 Hint: Think about how the emitter connects to the circuit.
What does the beta (β) value represent in a transistor?
💡 Hint: It's a ratio related to currents through the transistor.
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Interactive Quizzes
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What is the significance of matching transistors in a current mirror?
💡 Hint: Think about what happens if transistors behave differently.
Is the voltage gain of the amplifier calculated using Ohm's law?
💡 Hint: Remember the equations for gain involve parameters of the active devices.
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Challenge Problems
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Given a collector current I_C of 2.2 mA and β of 250, calculate the base current and describe its significance in the operation of the amplifier.
💡 Hint: Focus on the relationship between collector and base currents.
Design a current mirror circuit with an output voltage drop of 0.6V. If the supply voltage is 12V, calculate the maximum collector current sustainable in your design.
💡 Hint: Apply Ohm's law tailored to the output specifications.
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