Rearrange the equation to solve for the permeability of free space (μ0). Remember that the slope is the ratio of magnetic field to current or μ0 = 2R N B I . Hint: Substitute your value of slope into the equation in place of B / I. μ0 = T · m/A

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Complete Question

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Compare the percent error between your value and the accepted value of 1.26 times 10-6 T · m/A. (Use the accepted value given to three significant figures in your calculation.). 100% % error = %

Answer:

The permeability of free space is [tex]\mu_0 = 1.32*10^{-6} \ Tm/A[/tex]

The percentage error is  % error = 5.25%

Explanation:

From the question we are told that

            The slope is  [tex]s= 3.9\ G/A[/tex] , and

Generally  [tex]1 \ gauss = 10^{-4 } tesla[/tex]

               So  [tex]s = 3.9 *10^ {-4} T /A[/tex]

From the relation given in the question

                        [tex]\mu_0 = \frac{2R}{N} [\frac{B}{I} ][/tex]

 Where R is the radius of the coil  [tex]=\frac{Diameter \ of \ coil }{2} = 0.017m[/tex]

             N is the number of loops of the coil = 10

Now from the question we are told that

                  [tex]s = \frac{B}{I}[/tex]

substituting into the equation above

               [tex]\mu_0 = \frac{2R }{N} s[/tex]

Substituting values

              [tex]\mu_0= \frac{2 * 0.017}{10 } * 3.9*10^{-4}[/tex]

                   [tex]= 1.326 *10^ {-6} \ Tm/A[/tex]

Generally the % error is mathematically represented as

                    %[tex]error = \frac{Measured \ value - accepted \ value}{accepted \ value } *100[/tex]

Given that the accepted value is [tex]\mu_o_ {acc} = 1.26 *10 ^{-6} \ T \cdot m /A[/tex]

      Hence substituting values

                      %[tex]error = \frac{(1.326-1.26)*10^{-6}}{1.26 *10 ^ {-6}} *100[/tex]

                                  [tex]= 5.24[/tex]

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