88.1.2 - Department of Electronics and Electrical Communication Engineering
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Practice Questions
Test your understanding with targeted questions
Define a current mirror.
💡 Hint: Think about how it helps maintain current in amplifiers.
What is the typical value of β for a transistor?
💡 Hint: Consider what beta represents in transistor operation.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the main function of a current mirror?
💡 Hint: Think about the role of current in maintaining a stable circuit.
True or False: The Early voltage is irrelevant in practical transistor applications.
💡 Hint: Consider the definition and its importance in calculations.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Design a current mirror circuit with specified β values of the transistors and calculate the expected collector currents. Consider the effects of beta mismatch.
💡 Hint: Use the relationships provided earlier regarding collector and base currents.
Considering a common emitter amplifier using matched transistors, derive the expressions for output resistance based on given collector currents and Early voltage.
💡 Hint: Reference previous examples that discussed calculating output resistances.
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