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Unformatted text preview: +HW+1+solutions.docx EECS 314 Fall 2013 HW #1 Problem 1 Student’s name _______________________________ Discussion section # _______ Part 2 (30 points) A worker operates an electric drill plugged into a 120 V AC receptacle. The drill handle is made of aluminum; the hot (H) and neutral (N) wires are connected to the motor. For the safety analysis, use the data listed in Unit 2 Figures 2- 1 and 2- 3, along with the circuit model shown on the diagram below. If the insulation is good (the left sketch below), electric current flows only through the wires. If the wire insulation is failing (see the middle and the right sketches below), electric current from the cord can flow to the ground through the worker’s body, causing...
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This note was uploaded on 02/06/2014 for the course EECS 314 taught by Professor Ganago during the Spring '07 term at University of Michigan.

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