Consider an electrical wire submerged in liquid water at atmospheric conditions. The wire has a diameter of 1 mm and a length of 15 cm. The current through the wire is increased until the water reaches a temperature of 100°C. For this situation (boiling water) use an average value of the upper and lower values of the convection heat transfer coefficients given in Table 16€“5. The wire surface temperature is to be maintained at 115°C. How much electric power is required for this case?

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P= 1 atm Electrical wire