LAB 202 - LAB 202 Mehar Ghei LABORATORY EXPERIMENT REPORT...

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Unformatted text preview: LAB 202 Mehar Ghei LABORATORY EXPERIMENT REPORT Name: Mehar Ghei Group Members: Yvonne Chen, Marvin Castellon, Jeremy Buhain Experiment Date: Thursday, February 10 th Course Name: PHYS 121A Section: H02 Instructor: Beidi He LABORATORY #202 Numerical Verification OF Gausss Law 1. OBJECTIVE Evaluate Gausss Law numerically for difference surfaces and verify that the formula for an enclosed charge using MATLAB. 2. THEORETICAL BACKGROUND Electric Flux = * * = E E AcosE dA Q0 3. EQUIPMENT a. MATLAB software 4. COLLECTED DATA QUESTION 1 >> clear all diary ('Lab202'); diary on esp0 = 8.85*10^-12; k= 1/(4*pi*esp0); a=1; q1= 9*10^-9; syms x y z; E = @(x,y,z) k*q1/((x)^2 + (y)^2 + (z)^2)^(3/2)*[x,y,z]; I = [1,0,0]; J = [0,1,0]; K = [0,0,1]; Eup = dot(K, E(x,y,1)); Elow = dot(-K, E(x,y,-1)); Eleft = dot(-J, E(x,-1, z)); Page 1 of 16 LAB 202 Mehar Ghei Eright = dot(J, E(x,1,z)); Efront = dot(I, E(1,y,z)); Eback = dot (-I, E(-1,y,z)); PIup = int(int (Eup, x, -1,1),y,-1,1); PIlow = int(int (Elow, x, -1,1),y,-1,1); PIleft = int(int (Eleft, x, -1,1),z,-1,1); PIright = int(int (Eright, x, -1,1),z,-1,1); PIfront = int(int (Efront, y, -1,1),z,-1,1); PIback = int(int (Eback, y, -1,1),z,-1,1); vpa(PIup, 10) vpa(PIlow, 10) vpa(PIleft, 10) vpa(PIright, 10) vpa(PIfront, 10) vpa(PIback, 10) All_PI = PIup + PIlow + PIleft + PIright + PIfront + PIback; vpa(All_PI, 10) vpa(esp0*All_PI, 5) Warning: Explicit integral could not be found. Warning: Explicit integral could not be found. Warning: Explicit integral could not be found. Warning: Explicit integral could not be found. Warning: Explicit integral could not be found. Warning: Explicit integral could not be found. ans = 169.4915254 ans = 169.4915254 ans = 169.4915254 ans = 169.4915254 ans = 169.4915254 ans = 169.4915254 ans = 1016.949153 ans = 0.000000009 QUESTION 2 Page 2 of 16 LAB 202 Mehar Ghei >> clear all diary ('Lab202'); diary on esp0 = 8.85*10^-12; k= 1/(4*pi*esp0); a=1; q1= 9*10^-9; syms x y z; E = @(x,y,z) k*q1/((x-0.5)^2 + (y)^2 + (z)^2)^(3/2)*[x-0.5,y,z]; I = [1,0,0]; J = [0,1,0]; K = [0,0,1]; Eup = dot(K, E(x,y,1)); Elow = dot(-K, E(x,y,-1)); Eleft = dot(-J, E(x,-1, z)); Eright = dot(J, E(x,1,z)); Efront = dot(I, E(1,y,z)); Eback = dot (-I, E(-1,y,z)); PIup = int(int (Eup, x, -1,1),y,-1,1); PIlow = int(int (Elow, x, -1,1),y,-1,1); PIleft = int(int (Eleft, x, -1,1),z,-1,1); PIright = int(int (Eright, x, -1,1),z,-1,1); PIfront = int(int (Efront, y, -1,1),z,-1,1); PIback = int(int (Eback, y, -1,1),z,-1,1); vpa(PIup, 10) vpa(PIlow, 10) vpa(PIleft, 10) vpa(PIright, 10) vpa(PIfront, 10) vpa(PIback, 10) All_PI = PIup + PIlow + PIleft + PIright + PIfront + PIback; vpa(All_PI, 10) vpa(esp0*All_PI, 5) Warning: Explicit integral could not be found....
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This note was uploaded on 05/02/2011 for the course PHYSICS 121A taught by Professor Beidehe during the Spring '11 term at NJIT.

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LAB 202 - LAB 202 Mehar Ghei LABORATORY EXPERIMENT REPORT...

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