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ECE102_W05_Quiz3

# ECE102_W05_Quiz3 - ECE102 Student ID Quiz 3 Name(Last First...

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ECE102 Quiz 3 Winter 2005 1 0 V R = 1 k 2 V 4 V 4 V Student ID Name (Last, First) Score Question 1 (5 = 2 + 3 points): (a) For the feedback system below, find the expression for the output signal Y . (b) Consider the same feedback system as in part (a). Input X 1 is the desired signal and input X 2 is noise. If A 2 = 1, choose the values of A 1 and B such that the closed-loop gain for the desired signal is approximately 10 and the signal-to-noise ratio (S/N) is maximized. Your choices for A 1 and B are limited to the blocks below (where the number inside signifies the gain of the block). Question 2 (8 = 2 + 3 + 3 points): (a) Calculate the current flowing through resister R. 25 Q1 Q2 Q3 Q4 For those answers that are not a graph or drawing, you have to put a box around your result. You may loose credit if you don’t. Write your answers on the separate blank pages. Do not scribble them in between the lines of the question. Write your steps in a logical order, not quasi-randomly placed on the page. We will not go hunting for your answers.

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