23.5.3 - Practical Circuit Behaviour
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Practice Questions
Test your understanding with targeted questions
What is a current amplifier?
💡 Hint: Think about the purpose of the amplifier.
What does the unloaded current gain indicate?
💡 Hint: Focus on the term 'unloaded'.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does a current amplifier do?
💡 Hint: Recall the definition of a current amplifier.
The unloaded current gain is defined as:
💡 Hint: Think about what 'unloaded' means.
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Challenge Problems
Push your limits with advanced challenges
Design a simple current amplifier model that can react to an input current of 3 mA with an expected unloaded gain of 5. What would be the unloaded output current? Now, what if a load of 10 ohms is connected?
💡 Hint: Calculate the output using the gain and consider the effect of adding the load.
Explain how a change in temperature could affect the operation of a current amplifier configured using BJTs. What practical measures can be taken to mitigate these effects?
💡 Hint: Think about how external conditions influence electronic components.
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