A potential difference of 2.00 V will be applied to a 39.00 m length of 18-gauge...
A potential difference of 2.00 V will be applied to a 39.00 m length of 18-gauge aluminum wire (diameter = 0.0400inches). Calculate the current. Calculate the current density. Calculate the electric field. Calculate the rate at which thermal energy will appear in the wire.
Homework Answers
V = iR
i = V/R
i = 3.8/R
to calculate R ,
Resistance = resistivity x length/area
R = ?L/A =0.223
i = 3.8 / 0.223 = 17 A
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