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
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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