The proposed design for anemometer to determine the velocity of an airstream in a wind tunnel is comprised of a thin metallic strip whose ends are supported by stiff rods serving as electrodes for a passage of current used to heat the strip. A fine-wire thermocouple is attached to the trailing edge of the strip and serves as the sensor for a system that controls the power to maintain the strip at a constant operating temperature for variable airstream velocities. Design conditions pertain to an airstream at T = 25C and 1 u= 50 m/s, with a strip temperature of T =35C. Determine the relationship between the electrical power dissipation per unit width of the strip in the transverse direction, P'(mW/mm), and the airstream velocity. Show this relationship graphically for the specified range of u.