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Unformatted text preview: chamarthy (ac36769) – homework 06 – Turner – (56705) 1 This print-out should have 9 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points A cubic box of side a , oriented as shown, con- tains an unknown charge. The vertically di- rected electric field has a uniform magnitude E at the top surface and 2 E at the bottom surface. a E 2 E How much charge Q is inside the box? 1. Q encl = 0 2. Q encl = 3 ǫ E a 2 3. Q encl = ǫ E a 2 4. insufficient information 5. Q encl = 2 ǫ E a 2 6. Q encl = 1 2 ǫ E a 2 002 10.0 points A closed surface with dimensions a = b = . 451 m and c = 0 . 3608 m is located as in the figure. The electric field throughout the region is nonuniform and given by vector E = ( α + β x 2 )ˆ ı where x is in meters, α = 2 N / C, and β = 2 N / (C m 2 ). E y x z a c b a What is the magnitude of the net charge enclosed by the surface?...
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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 at Austin.
- Spring '07