The man then decides to measure Bx at the centre of the coil (x = 0, r = 0) for several different values of N and R. The current in the wire is kept constant at I = 4.00 A and the student records Bx(0,0) in Table 2 below. A. Deduce which combinations of N and R from Table 2 correspond to coils with the original values in initial questions (R = 20.0 cm and N = 40.0). Explain your reasoning. B. Use Table 2 and your answer to part A above to create a new table listing Bx(0,0) against N and R, where the current and the total wire length are kept constant. C. Plot Bx(0, 0) against N from the data in your table for part B. You may plot your graph by hand, or electronically. D. Deduce the relationship between Bx(0, 0) and N for coils with the same total wire length and current. Show that the data in your plot for part C is consistent with this relationship. R/cm  Bx/μT Bx/μT Bx/μT Bx/μ

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Chapter1: Units, Trigonometry. And Vectors
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The man then decides to measure Bx at the centre of the coil (x = 0, r = 0) for several different values of N and R. The current in the wire is kept constant at I = 4.00 A and the student records Bx(0,0) in Table 2 below.

A. Deduce which combinations of N and R from Table 2 correspond to coils with the original values in initial questions (R = 20.0 cm and N = 40.0). Explain your reasoning.

B. Use Table 2 and your answer to part A above to create a new table listing Bx(0,0) against N and R, where the current and the total wire length are kept constant.

C. Plot Bx(0, 0) against N from the data in your table for part B. You may plot your graph by hand, or electronically.

D. Deduce the relationship between Bx(0, 0) and N for coils with the same total wire length and current. Show that the data in your plot for part C is consistent with this relationship.

R/cm  Bx/μT Bx/μT Bx/μT Bx/μT Bx/μT
  N=10.0 turns  N=20.0 turns  N=40.0 turns  N=80.0 turns  N=160.0 turns 
5.0 503 1010 2010 4020 8040
10.0 251 503 1010 2010 4020
20.0 126 251 503 1010 2010
40.0 63 126 251 503 1010
80.0 31.4 63 126 251 503 
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