A copper strip (n = 8.47 ✕ 1022 electrons per cubic centimeter) 2 cm wide and 0.05 cm thick is used to measure the magnitudes of unknown magnetic fields that are perpendicular to the strip. Find the magnitude of B for the following Hall voltages when I = 21 A.
(a) VH = 2.00 µV
T
(b) VH = 5.25 µV
T
(c) VH = 8.00 µV
T
The field B is given as
B = V * t * e * n / I
where V is hall voltage, I is current, t is thickness and e is charge,
so,
(a) For V = 2 uV = 2e-6 V
B = 0.6453 T
(b) For V = 5.25 uV
B = 1.694 T
(c) For V = 8 uV
B = 2.581 T
A copper strip (n = 8.47 ✕ 1022 electrons per cubic centimeter) 2 cm wide and...
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