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the same line? (a) 1 (b) 2 (c 3 (dy 4 (e) 5 ocopyright 2016 Prof Raymond s Robin

ID: 1551171 • Letter: T

Question

the same line? (a) 1 (b) 2 (c 3 (dy 4 (e) 5 ocopyright 2016 Prof Raymond s Robinson All rights reserved, no part ofthis examination may be reproduced in any form or by any means without written permission. Experimental evidence indicates (a) charge is quantized and conserved charge is conserved but not quantized. (c) charge is quantized but not conserved. (d) charge is neither quantized nor conserved. (e) there is no experimental data relating to charge quantization or conservation. 13. A solid conducting sphere ofradius r, is placed concentri ally inside a conducting spherical shell of inner radius ran and outer radius r. The inner sphere canes a charge Q while the outer sphere does not camy any net charge. The surface charge density for r ral is X14. If a charge of -3Q were placed at the origin (the crossing point of the vertical and horizontal lines) of the adjacent figure, into which quadrant would it feel a net fo (a) A (b) B (c) C (d) D (e) None, it feels no net force 15. Three charges ta, +0, and are placed at the corners of an equilateral triangle as shown. The base of the triangle with +Q and horizontal. The net force on charge tq due to the other two charges i (a) vertically up. (b) horizontal to the left. (c) vertically down. (d) horizontal to the right. (e) zero 16. A charge of 3.4 nC is placed at the origin. Th origini at the center of a cube with sides of length 2.00 m and oriented perpendicular to the Cartesian What is the outward electric flux in St units throu a single side of the cube at x 0 m that is parallel to the y-z plane? a) 33.0 (b) 384 e) 95 d) 13.7 (e) 64.0 17. A positively charged glass rod is broughf near to, without touching, an uncharged, isolated, conducting sphere as shown. Which of the following inustrations is the most comect representation of the charge distrib on the conducting sphere with the glass as shown? (a) (d)

Explanation / Answer

charge conservation is the principle that electric charge can neither be created nor destroyed. The net quantity of electric charge, the amount of positive charge minus the amount of negative charge in the universe, is always conserved

Charge only comes in countable numbers. The smallest amount of charge that has ever been observed is the charge on the electron and/or the charge on the proton

Q = ne

so,

charge is quantized and conserved

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