Table P29.70 shows measurements of a Hall voltage and corresponding magnetic field for a probe used to measure magnetic fields.
(a) Plot these data, and deduce a relationship between the two variables.
(b) If the measurements were taken with a current of 0.200 A and the sample is made from a material having a charge-carrier density of 1.00 x 1026/m3, what is the thickness of the sample?

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Table P29.70 19 28 42 50 61 68 79 90 102 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00