A current of 8.959 milliamps (10-3 A) is measured flowing through a tungsten wire of diameter 0.1 mm and 9 cm long when 1.7 mV is applied. What is the resistivity of tungsten? Express your answer in ohm-m.

1 answer

R = resistivity*L/A
Calculate R and substitute L for length and A for cross section area and solve for resistivity. I believe L is in meters and A in square meters for resistivity to be reported in ohm-m.
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