Engineering, 06.05.2020 02:02 uberagentkenny

Air at 25ºC flows in an electric hair drier with a velocity of 6 m/s perpendicular to a Nichrome heating element. The heating element is 1-mm in diameter and 36-cm long with a resistance of 1.52 Ω/m. The wire temperature cannot exceed 420ºC so that the wire will not lose strength and sag. Determine the electric current in the wire.

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Air at 25ºC flows in an electric hair drier with a velocity of 6 m/s perpendicular to a Nichrome hea...