6 mm diameter power line carries 40 A current and the resistance of one meter is...

6 mm diameter power line carries 40 A current and the resistance of one meter is 0.02 ohms. Find the surface temperature of the wire on a day when the wind temperature is 10 ° C, the wind speed is 40 km / h and it crosses the wire. Air characteristics: p = 1.246 kg / m3. k = 0.02439 W / m ° C. Pr = 0.7336, v = 1.426x10 m / s. (Electrical power, P = 1 * R).

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samet mamat answered 1 year ago

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