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The calibrated gaussmeter was used to measure the magnetic field of a ceramic magnet. This was approximately 6mm in diameter and 10mm in length and, as the results below indicate, produce a field of about 0.3 Tesla at the pole face. The field falls much more quickly than the inverse square law would predict, and the curve is best approximated to a polynomial for empirical purposes.
distance d mm | Vgauss | Vgauss | Lateral | Collinear |
(lateral) | collinear | Field Tesla | Field Tesla | |
0 | 1.16E+00 | 2.30E+00 | 1.68E-01 | 3.33E-01 |
1 | 9.50E-01 | 1.80E+00 | 1.38E-01 | 2.61E-01 |
2 | 7.50E-01 | 1.30E+00 | 1.09E-01 | 1.88E-01 |
4 | 4.80E-01 | 7.70E-01 | 6.96E-02 | 1.12E-01 |
6 | 3.10E-01 | 4.50E-01 | 4.49E-02 | 6.52E-02 |
8 | 1.88E-01 | 2.89E-01 | 2.72E-02 | 4.19E-02 |
10 | 1.34E-01 | 1.87E-01 | 1.94E-02 | 2.71E-02 |
15 | 4.90E-02 | 9.20E-02 | 7.10E-03 | 1.33E-02 |
20 | 2.70E-02 | 5.40E-02 | 3.91E-03 | 7.83E-03 |
25 | 1.22E-02 | 3.15E-02 | 1.77E-03 | 4.57E-03 |
30 | 7.50E-03 | 2.20E-02 | 1.09E-03 | 3.19E-03 |
35 | 5.00E-03 | 1.40E-02 | 7.25E-04 | 2.03E-03 |
40 | 3.20E-03 | 1.10E-02 | 4.64E-04 | 1.59E-03 |
50 | 2.00E-03 | 7.00E-03 | 2.90E-04 | 1.01E-03 |
75 | 6.00E-04 | 3.30E-03 | 8.70E-05 | 4.78E-04 |
100 | 2.20E-03 | 3.19E-04 |