Question

A platinum resistance thermometer measures temperature on the assumption that the change in electrical resistance of platinum is proportional to the change in temperature. The resistance of the platinum wire at 0°C is 10.4 ohms and 10.71 ohms at 100°C. Calculate the temperature when the resistance is 9.61 ohms. What will be the resistance of the wire when the temperature is 45°C. ​

Answer 1

The temperature when the resistance is 9.61 ohms is -17.3°C. The resistance of the wire when the temperature is 45°C is 11.45 ohms.

Step-by-step explanation: