9.7.4 - Current Relation
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Practice Questions
Test your understanding with targeted questions
What are the three main currents in a junction transistor?
💡 Hint: Think about the names of the transistor terminals.
In a BJT, if I_B = 2 mA and β = 50, what is I_C?
💡 Hint: Use the formula I_C = β * I_B.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating collector current in a BJT?
💡 Hint: Focus on how the base current affects the collector current.
True or False: The emitter current is always greater than the collector current in a BJT.
💡 Hint: Consider how currents add up at the emitter.
1 more question available
Challenge Problems
Push your limits with advanced challenges
If a BJT has a current gain of 200 and a base current of 0.1 mA, calculate the I_C, I_E, and what could happen to I_C if I_B is reduced by half.
💡 Hint: Apply the relationships we discussed and remember how changes affect output.
A particular BJT circuit needs to switch under very low base current. If I_B drops to 0.2 mA with a β value of 50. Determine I_C and implications for the circuit if the devices are designed for 30 mA.
💡 Hint: Evaluate if the base current is sufficient for the collector needs.
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