Please answer 12 and 13, and show the equation set up on how you utilize earths

Question

Please answer 12 and 13, and show the equation set up on how you utilize earths field and so forth.

11. Can you confirm that the magnetic field produced by a coil of current-carrying wire is 12. Using one of the "perpendicular" data points, calculate the magnitude of the ambient magnetic 13. R proportional to the number of turns N? field at your location. As a reference, the Earth's magnetic field is typically a epeat you Hint: For the "parallel" experiment, the field of the coil and the ambient field are perpendicular to each other. That means that the direction that the needle points, which you chose to be about 30, is the result of a vector sum of the ambient field and the induced field. bout 5x103 T r calculation of the ambient magnetic field using one of the "parallel" data points. Cvrrtmt(A-6175 Crrent(A) 6,37

Explanation / Answer

12. for pependicular data points the field is added algebriacally to the earth's magnetic field ( or subtracted depending upon the relative orientation of the current)

N 5

i= 0.75 A

B = mu*Ni/2*r = 4.712*10^-6/2r T

Be = 5*10^-5 T

hence

Bnet = B + Be

as value of r is unknown, the sum can be found using that

13. for parallel points , the vector sum is udes

B = mu*Ni/2r = 9.42477*10^-7/r

Be = 5*10^-5 T

now given

B/Be = tan(30)

hence

r = 0.0326483885 m

hence

B = 2.886*10^-5 T

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