quiz3 - Physics 214, Quiz 3 4:30 PM, March 26, 2010 T....

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Physics 214, Quiz 3 4:30 PM, March 26, 2010 T. Bolton Name Instructions. Print and sign your name on this quiz and on your scantron card. In doing so, you are acknowledging the KSU Honor Code: “On my honor as a student I have neither given nor received unauthorized aid on this assignment.” For two quick points , circle your studio instructor:: Lohman(TU 7:30) Bolton(TU 9:30) Van Domelen(TU 11:30) Murphy(TU 1:30) Lohman(TU 3:30) Farooq(WF 9:30) Van Domelen(WF 11:30) Work alone and answer all questions. Part I questions must be answered on the Scantron cards. Putyournameonyourcard . Co lorinthecorrectboxcomp lete lyforeveryanswerw ithapenc i l . If you make a mistake, erase thoroughly. Don’t forget to color in the boxes for your WID. If we have to correct this by hand we may take o f f ve points from your score! Part II must be answered in the space provided on the test. The last page is a detachable equation sheet. You may use a calculator. You may ask the proctors questions of clari f cation. Show your work in a clear and organized manner. You may receive partial credit for partial solutions. Solutions lacking supporting calculations will receive no points. Good luck! Inspired by Important Things with Demetri Martin 2/25/09 electron proton crouton Bolton
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Part I: All questions to be answered on your Scantron card (54 points total). 1. (3 points) Which alteration below would result in a DC electric motor developing less torque during its operation. . (a) Increasing the number of turns in the motor’s coil. (b) Boosting the current f owing through the motor’s coil. (c) Halving the area of the motor’s coil. (d) Reducing the distance between the motor’s coil and its magnet’s pole faces. . (e) Replacing the motor’s aluminum frame with an iron frame. 2. (3 points) Which way would a fast proton moving straight down toward the ground near the earth’s equator be de f ected by earth’s magnetic F eld? (a) North. (b) South. (c) East. (d) West. (e) Very little de f ection will occur. 3. (3 points) Which way would a fast electron moving straight down toward the ground in northern Canada be de f ected by earth’s magnetic F eld?
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quiz3 - Physics 214, Quiz 3 4:30 PM, March 26, 2010 T....

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