Physics · Manufacturing Engineering
In an arc welding process, the voltage and current are 30 V and 200 A, respectively. The cross-sectional area of the joint is 20 mm2 and the welding speed is 5 mm/s. If the heat required to melt the material is 20 J/mm3, what is the percentage of heat lost to the surroundings during the welding process?
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66.67%
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