QTest #2-solutions

QTest #2-solutions - Version 041/AACCB – QTest #2 –...

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Unformatted text preview: Version 041/AACCB – QTest #2 – Antoniewicz – (57030) 1 This print-out should have 3 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points A neutral ball is suspended by a string. A positively charged insulating rod is placed near the ball, which is observed to be at- tracted to the rod. Why is this? 1. The ball becomes negatively charged by induction. 2. The number of electrons in the ball is greater than in the rod. 3. There is a rearrangement of the electrons in the ball. correct 4. The string is not a perfect conductor. 5. The ball becomes positively charged by induction. Explanation: If a positively charged insulator is brought close to a conductor, it will attract some of the free electrons of the conductor closer to the insulator. The attraction between the insulator and the conductor results from the rearrangement of electrons....
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This note was uploaded on 03/04/2012 for the course PHY 303L taught by Professor Turner during the Spring '08 term at University of Texas.

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QTest #2-solutions - Version 041/AACCB – QTest #2 –...

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