ECE 111 Final: ECE 111 University of Rochester Final Exam 06

• School: University of Rochester
• Department: Electrical and Computer Engineering
• Course: ECE 111
• Professor: All

Document Summary

This is a closed-book examination, but you may use a hand-held calculator. Write your name on your exam booklet and then do all work in it. Partial credit is more likely for work that is neat, well-organized, and easy to read. Do not overstate or understate the precision of numerical answers. Four (4) resistors, r1, r2, r3, and r4, each having the same nominal value. R and the same precision, are used in the design for the 4:1 voltage divider shown below. If the divider ratio is specified to be vout/vin = 0. 25 with a precision of 3%, use worst-case analysis to determine the requirement on the % precision for the four resistors. vin(t) Using phasors, solve the equation below for steady-state ac voltage v(t). d2v dt2. + v = cos(t + p / 4) R vr(t) t = 0- t = 0+ t vs(t)