14.1.8 - Procedure for Finding Base Current
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Practice Questions
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What is the link between base current and collector current in a BJT?
💡 Hint: Think about the role of the transistor as an amplifier.
How would you determine the collector-emitter voltage?
💡 Hint: Focus on the voltage drops around the loop.
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Interactive Quizzes
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What is the base current in a BJT circuit if I_C = 5mA and β = 100?
💡 Hint: Consider how base current relates to collector current.
True or False: The collector current in a BJT is always less than the base current.
💡 Hint: Think about the role of a transistor.
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Challenge Problems
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A transistor has an I_S of 50nA, and the base-emitter voltage is 0.75V. Calculate the base current I_B at room temperature (T=25°C).
💡 Hint: Remember, use the thermal voltage of 25mV.
In a linear circuit, if the collector-emitter voltage is observed to swing between 2V and 8V with corresponding collector currents of 10mA and 20mA, determine the slope of the load line.
💡 Hint: Look for the change in current over the change in voltage.
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