8.7.1 - Ratio of Collector to Base Current (β)
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Practice Questions
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What does β represent in a BJT?
💡 Hint: Think about amplification.
Name the three terminals of a BJT.
💡 Hint: They are the connection points for current flow.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does β signify in a BJT?
💡 Hint: Think about how much the signal increases.
True or False: A lower β means that the transistor can amplify signals less effectively.
💡 Hint: Consider the ratios involved.
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Challenge Problems
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How would you calculate the β if the collector current in a BJT is 30 mA and the base current is 0.2 mA?
💡 Hint: Use the formula β = I_C/I_B.
A BJT with a base width of 0.1μm has a diffusion constant for electrons of 25 cm²/s. If the emitter doping is high, what factors should you consider to maximize β?
💡 Hint: Consider the role of charge dynamics in a BJT.
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