23.4 - Introduction to Current Amplifiers
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Practice Questions
Test your understanding with targeted questions
What is a current amplifier?
💡 Hint: Think about the function of the amplifier in your audio systems.
What role does a BJT play in current amplifiers?
💡 Hint: Consider which electronics components are essential in amplifying signals.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a current amplifier primarily do?
💡 Hint: Recall the functionality of current versus voltage amplifiers.
True or False: An AC coupling capacitor allows DC signals to pass.
💡 Hint: Think about how coupling capacitors are used in circuits.
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Challenge Problems
Push your limits with advanced challenges
You have a BJT current amplifier with an unloaded current gain of 10. If the input current is 2 mA, what is the output current?
💡 Hint: Simply multiply the input by the gain.
Explain how to account for loading effects when connecting a load resistor to the output of a current amplifier.
💡 Hint: Think back to the formulas we derived for loading effects.
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