Questions
Napat Triroj
17
Q1: Convert the unit (°C)-1 to ppm/°C and then find all the temperature coefficients of resistance in the table in ppm/°C.
Q2: A Platinum resistance thermometer uses the change in resistance to measure temperature. Suppose = 50 at = 20 °C. What is its resistance at 50 °C?
Q3: The thermometer in Q2 is immersed in a vessel containing melting tin, at which point increases to 91.6 . What is the melting point of tin?