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Physics 121 LAB - D=20 cm clear all mue0 = 4*pi*10^-7 R =...

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D=20 cm clear all mue0 = 4*pi*10^-7; R = 6.8*10^-2; N = 320; I = 1.25; D = [20, 30, 40, 50]*10^-2; x = -0.2:0.005:0.2; Pexp = [0, 1, 2, 3, 4, 5, 6]*10^-2; Bexp = [1.148, 1.235, 1.376, 1.587, 1.923, 2.322, 3.092]; x1 = D(1)/2 - x; B1 = (mue0*N*I*R^2)./(2*(R^2+x1.^2).^1.5); x2 = D(1)/2 + x; B2 = (mue0*N*I*R^2)./(2*(R^2+x2.^2).^1.5); Btotal = B1 + B2; plot(x, Btotal*10^3), hold on , plot(Pexp, Bexp, 'o' ) xlabel 'x' , ylabel 'Btotal, Bexp*10^3' -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15 0.2 0.5 1 1.5 2 2.5 3 3.5 4 x Btotal, Bexp*10 3 D=30 clear all mue0 = 4*pi*10^-7; R = 6.8*10^-2; N = 320; I = 1.25; D = [20, 30, 40, 50]*10^-2; x = -0.2:0.005:0.2; Pexp = [0, 1, 2, 3, 4, 5, 6]*10^-2; Bexp = [0.413, 0.439, 0.489, 0.558, 0.660, 0.776, 0.944];
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x1 = D(2)/2 - x; B1 = (mue0*N*I*R^2)./(2*(R^2+x1.^2).^1.5); x2 = D(2)/2 + x; B2 = (mue0*N*I*R^2)./(2*(R^2+x2.^2).^1.5); Btotal = B1 + B2; plot(x, Btotal*10^3), hold on , plot(Pexp, Bexp, 'o' ) xlabel 'x' , ylabel 'Btotal, Bexp*10^3' -0.2 -0.15 -0.1 -0.05 0 0.05 0.1 0.15 0.2 0 0.5 1 1.5 2 2.5 3 3.5 4 x Btotal, Bexp*10 3 D=40 clear all mue0 = 4*pi*10^-7; R = 6.8*10^-2; N = 320; I = 1.25; D = [20, 30, 40, 50]*10^-2; x = -0.25:0.005:0.25; Pexp = [0, 1, 2, 3, 4, 5, 6]*10^-2; Bexp = [0.154, 0.163, 0.172, 0.193, 0.223, 0.260, 0.312]; x1 = D(3)/2 - x; B1 = (mue0*N*I*R^2)./(2*(R^2+x1.^2).^1.5); x2 = D(3)/2 + x; B2 = (mue0*N*I*R^2)./(2*(R^2+x2.^2).^1.5);
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