23.5.1 - Current Source and Internal Current Gain A
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Practice Questions
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What does a current amplifier do?
💡 Hint: Think about the purpose of amplifying a signal.
What is the role of a DC coupling capacitor?
💡 Hint: Consider how it affects signal transmission.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is a current amplifier primarily used for?
💡 Hint: Think about what type of signal you are working with.
The term 'unloaded current gain' refers to:
💡 Hint: Recall the definition discussed in class.
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Challenge Problems
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Design a current amplifier circuit with a specified output current of 100mA and an unloaded current gain of 10. Determine the required input current.
💡 Hint: Use algebra to rearrange the formula.
Given the loading parameters as R_O = 100Ω and R_in = 50Ω, and a source current of 4mA, calculate the effective output current and analyze how it differs from the unloaded case.
💡 Hint: Consider the parallel resistance formulas.
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