15.2.1 - I-V Characteristic at the Base
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Practice Questions
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What is the common emitter configuration?
💡 Hint: Think about the input and output locations in a circuit.
Define collector current.
💡 Hint: Consider the paths leading from the emitter to the collector.
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Interactive Quizzes
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What does a common emitter configuration primarily do?
💡 Hint: What happens to currents in this configuration?
True or False: The Q-point should always stay within the saturation region for optimal performance.
💡 Hint: Consider how the Q-point affects output linearity.
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Challenge Problems
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In a common emitter circuit, if the base current is 20 μA and β = 150, what is the collector current? If the load resistance is 1kΩ, calculate the output voltage if the supply voltage is 10V.
💡 Hint: Use the relationship between Ib, Ic, and load resistance effectively.
Discuss the effects on the output voltage if the load resistance is decreased in a common emitter amplifier and explain why this happens.
💡 Hint: Consider Ohm's law and the impact on voltage as current increases.
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