ECE 111 Final: ECE 111 University of Rochester Final Exam 07

• 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. Two resistors, r1 and r2 are to be used in the dc voltage divider circuit shown below to monitor a high voltage vo, where 0 < vo < 1000 volts-dc, using a dc voltmeter with a ~1 v range. If the divider ratio is 1/1000, then v will be equal to one one-thousandth of vo and will never exceed the 1 volt limit of the voltmeter. The value of r1 and its precision are. 5000 ( 50) w. determine the nominal value of r2 and its precision required to achieve 3% overall accuracy for the measurement of vo.