Exam 3 with Resolution - Electronics | ECE 2204, Exams of Basic Electronics

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Electronics 1, ECE 2204, CRN 11883 Exam 3 Chapter 5&16 . BJT and Logic Circuits Use proper UNITS and ONLY 3 significant figures in all calculations. NAME: Signature: By signing this exam, you agree that you have followed the Honor Code. Part 1: Please circle the right answers to each question: (5% for each question) (1). For the amplifier below, B=120, Vpe(on=0.7V, and V4=0. To amplify the ac input signal AV) without distortion, which DC biasing voltage Vpp below should be applied? (a)0.7V SV @ 13V (c)2.0V Vines (2). For a current mirror below, to make it function well, which statements are right? & Match Q1 and Q2 to be the same with identical device parameters (b) Make Q2 in saturation region @® Both QI! and Q2 must be in forward-active mode (d) Both Q1 and Q2 must be in saturation mode (3). In an integrated circuit, all n-channel transistors are fabricated in the same P-type substrate material. The substrate is connected to the most negative potential in the circuit, which for digital circuits, is normally at ground potential or zero voltage. Therefore, there might be certain source-to- body biasing voltage for some transistors, which will cause: (a) Channel-length modulation ® Body effect (c} no impact