Question

describe an experiment which would show that copper is a better conductor of heat than iron?

Answer 1

Copper has more number of free electrons which are responsible for carrying electric current.

Iron has comparatively less number of free electrons thus it is inferior to copper in terms of conductivity.

Answer 2

An experiment to show that copper is a better conductor of heat than iron,is as follows -

• Required things :

- A copper wire and an iron wire of same dimensions. ( Same Length, Diameter etc.)

- Two ice cubes of same dimensions. ( Same lengh , Same width ,Same height and Same volume)

- Two sources of heat,that will produce same amount of heat energy.

• At first,take one ice cube and place one end of the iron wire on the surface of the ice cube and other end of the iron wire on the heat source. The ice cube will melt after some time. Finally, note the total time taken for the complete melting process of the ice cube.

• Repeat the same process with the copper wire also and note the time.

• Finally,we will observe that the time for the copper wire is less than the time for the iron wire.

• This happens because,the copper wire can conduct greater amount of heat and that's why it takes less amount of time to completely melt the ice cube.