A 25-mm-diameter, high-tension line has an electrical resistance of 10
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A 25-mm-diameter, high-tension line has an electrical resistance of 10

A 25-mm-diameter, high-tension line has an electrical resistance of 10- 4 n/m and is transmitting a current of 1000 A.

(a) If ambient air at 10°C and 5 m/s is in cross flow over the line, what is its surface temperature?

(b) If the line may be approximated as a solid copper rod, what is its centerline temperature?

(c) Generate a plot that depicts the variation of the surface temperature with air velocity for 1 <10="" m/s.="">

Hint
ManagementSurface temperature is monitored with a hand-held Infrared Thermometer (IRT) that has been wrapped in a thermal glove or left outside for at least 30 minutes prior to data collection, if necessary. To take surface temperature data, the equipment is directed at the ground. ...

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