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Unformatted text preview: 1 ID # ______________________________ NAME ______________________________ EE-255 EXAM 1 February 5, 1998 Instructor (circle one) Ogborn Lundstrom This exam consists of 20 multiple choice questions. Record all answers on this page, but you must turn in the entire exam. There will be no partial credit, but you must show your work. Circle the one best answer for each question. Five points per question. Do not open and begin until you are instructed to do so! 1) a b c d e 2) a b c d e 3) a b c d e 4) a b c d e 5) a b c d e 6) a b c d e 7) a b c d e 8) a b c d e 9) a b c d e 10) a b c d e 11) a b c d e 12) a b c d e 13) a b c d e 14) a b c d e 15) a b c d e 16) a b c d e 17) a b c d e 18) a b c d e 19) a b c d e 20) a b c d e 2 1) What is the value the voltage measured between terminals A and B? (a) 1 V; (b) 3.33V; c) 6.67V; (d) 7.5V; (e) 10 V A B- + 1K 10V 1K 1K--------------------------------------------------------------------------------------------------------------------- 2) What is the Thevenin equivalent resistance seen between terminals A and B in the circuit above? (a) 0.33 K ; (b) 0.5 K ; (c) 1.0 K ; (d) 1.5 K ; (e) 3 K --------------------------------------------------------------------------------------------------------------------- 3) What is the Thevenin equivalent impedance between terminals A and B for the circuit below? (a) Z in = R (b) Z in = 1 g m (c) Z in = R + 1 g m (d) Z in = R || 1 g m (e) Z in = g m V 1 V 1 +- R A B--------------------------------------------------------------------------------------------------------------------- 4) What is the current, I D , through the diode in the circuit below? You may use a model with...
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E1 - 1 ID # ______________________________ NAME

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