homework 01 - chamarthy(ac36769 – homework 01 – Turner...

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Unformatted text preview: chamarthy (ac36769) – homework 01 – Turner – (56705) 1 This print-out should have 11 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points At some automobile toll-collecting stations, a thin metal wire sticks up from the road and makes contact with cars before they reach the toll collector. What is the purpose of this wire? 1. To transfer electrons to the automobile 2. To transfer positive particles to the auto- mobile 3. To count the vehicles 4. To warn the drivers 5. To discharge the automobile 002 10.0 points The five thousand billion freely moving elec- trons in a penny repel one another. Why don’t they fly off the penny? 1. They don’t have enough speed. 2. They cause a jam when they try to fly away. 3. The shell of the penny prevents the elec- trons from flying. 4. They are attracted to the five thou- sand billion positively charged protons in the atomic nuclei of atoms in the penny. 5. The electrons attract each other. 003 10.0 points How can a charged atom (an ion) attract a neutral atom?...
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This note was uploaded on 11/30/2010 for the course EE 411 taught by Professor Lee during the Spring '07 term at University of Texas.

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homework 01 - chamarthy(ac36769 – homework 01 – Turner...

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