Heat Conduction
A 90.0 cm wire with a diameter of 1.55 mm is perfectly insulated at its sides. Such that a fire is lighted at the head end with a constant temperature of 368 K, while the temperature at the other end is 285 K. If the thermal conductivity of the wire is 380 W , what is the rate of heat flow along the wire in Watt?
The answer is 0.066.
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