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Bipolar_Junction_Transistor

# Bipolar_Junction_Transistor - Exercise 1 Bipolar Junction...

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Exercise 1: Bipolar Junction Transistor Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) Why is the arrow on the BJT schematic symbol important? 1) A) It identifies the collector terminal and the type of BJT. B) It identifies the emitter terminal and the type of BJT. C) It identifies the base terminal and the type of BJT. D) None of the above 2) A BJT has measured dc current values of I B = 0.1 mA and I C = 8.0 mA. When I B is varied by 100 μA, I C changes by 10 mA. What is the value of the Ά ac for this device? 2) 3) BJTs are commonly used as ________. 3) 4) For basic operation of a transistor the base - emitter junction is ________ biased. 4) A) reverse - B) semi - C) not D) forward - 5) Ά is the ratio of ________. 5) 6) Which of the following expressions is true? 6) A) ΅ dc = I C I B B) ΅ dc = ̇ I C ̇ I B where V CE is constant C) ΅ dc = I C I E D) ΅ dc = ̇ I C ̇ I E where V CB is constant 7) A given BJT has an alpha of 0.9985 and a collector current of 15 mA. What is the value of base current? 7) 8) For a given BJT, Ά = 400. What is the value of ΅ for the device? 8) 9) Which transistor amplifier configuration is the most commonly used? 9) 1

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