9.7.3 - Modes of Operation
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Practice Questions
Test your understanding with targeted questions
What happens in the active mode of a BJT?
💡 Hint: Think about the junction biases.
Describe the cut-off mode in BJTs.
💡 Hint: What does an open switch do?
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Interactive Quizzes
Quick quizzes to reinforce your learning
In which mode does a BJT allow amplification?
💡 Hint: Think about the purpose of a transistor in amplifiers.
True or False: The cut-off mode of a BJT allows maximum current.
💡 Hint: What does an open switch do?
2 more questions available
Challenge Problems
Push your limits with advanced challenges
Design a circuit using a BJT for an audio amplifier. Explain its behavior in active mode, and include calculations for the expected current gain if the base current is 10 mA.
💡 Hint: Use the formula I_C = β * I_B.
A BJT is to be used as a switch controlling a motor. Describe its operation in saturation and cut-off modes and include the necessary voltage levels for each state.
💡 Hint: Consider how the transistor behaves in on and off states.
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