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The direction of the field lines is vertical going

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Unformatted text preview: stance z 45 40 35 30 !ield strength 25 (G) 20 15 10 5 0 y = 220.25e- 0.249x R² = 0.98453 0 5 10 15 20 distance in the z direction (cm) Graph 2. Graph of field strength vs distance in the direction of z. From here we can see clearly that as the vertical distance increases, the field strength decreases non- linearly. The direction of the field lines is vertical, going up if we are measuring close to the north pole and going down if we are measuring near the south pole. Hence the probe should be places horizontally to cut the field lines. In either cases field gets weaker as we move away in the z direction. !ield strength vs distance p 8 7 6 5 !ield strength 4 (G) 3 y = 11.218e- 0.208x R² = 0.94318 2 1 0 0 2 4 6 8 10 12 14 distance in the p direction (c...
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