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) A) 800 B) 80 C) 100 D) 10 3) BJTs are commonly used as ________. 3) A) the primary components in rectifiers B) the primary components in amplifiers C) series damper circuits D) All of the above 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) A) collector current to emitter current B) base current to collector current C) emitter current to collector current D) collector current to base current 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) A) 15.15 mA B) 15 mA C) 14.85 mA D) None of the above 8) For a given BJT, Ά = 400. What is the value of ΅ for the device? 8) A) 1.0025 B) 1.00 C) 0.9975 D) 0.002 9) Which transistor amplifier configuration is the most commonly used? 9) A) common - collector B) common - base C) common - emitter D) None of these are used more often than the others. 1
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10) A given BJT has an emitter current of 12 mA and a base current of 600 μA. What is the value of Ά dc ? 10)
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This note was uploaded on 07/22/2011 for the course ENGINEERIN 101 taught by Professor Piamonte during the Spring '11 term at Alabama.

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Bipolar_Junction_Transistor - Exercise 1: Bipolar Junction...

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