Homework #1

# there would be no sparks whatsoever true false nei

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Unformatted text preview: 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 an electric shock. As you know from Unit 2, the skin resistance may be greatly reduced by sweat, wet footwear, etc., increasing the risk for electric shock. 2- wire connection. The 2- wire connection. The 3 - wire connection. The wire insulation is good. wire insulation is failing. wire insulation is failing. For each of the situations outlined below, answer the following questions: ü༏ What is the path of electric current through the human body? ü༏ What is the electric resistance for this current? ü༏ What is the magnitude of the current through the human body? ü༏ What are the physiological effects of the electric shock on the human being? © 2013 Alexander Ganago Page 2 of 3 Last printed 2013- 09- 05 12:57 PM File: 2013 F 314 HW 1 p3.docx EECS 314 Fall 2013 HW #1 Problem 3 Student’s name _______________________________ Discussion section # _______ Assu...
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