Question

To determine the coefficient of thermal conductivity of copper by searle's apparatus

Answer 1

Steps to prepare the determine process:

1. make sure thermometers are correctly placed on the bar

2. adjust the constant pressure head device to offer a steady flow around the cold end of the bar

3. connect to power supply

4. check set up by technicians

5. when water is flowing, switch on the power supply and observe input current and voltage

6. after a while, water starts get hotter until constant temperature difference is reached. for better results adjust the water flow so that temperature difference is about 5 degree celsius

7. wait till all thermometers reach a constant value, record temperature of each thermometer

8. Measure the rate of water flow by collecting the total water flow for a certain time  interval that you measure  

Answer 2

Explanation:

To determine the coefficient of thermal conductivity of copper by searle's apparatus