Q. explain the observations of this experiment
Take an aluminium or copper wire. Clamp this wire on a stand, as shown in Fig. 3.1.
Fix a pin to the free end of the wire using wax.
Heat the wire with a spirit lamp, candle or a burner near the place where it is clamped.
What do you observe after some time?
Note your observations. Does the metal wire melt?
The observation for the following experiment will be as follows
1) The metal wire becomes hot and therefore the wax at the free end melts and the pin falls down
This proves that metals are good conductors of heat
2) The wire will not melt despite having attained a high temperature.
This follows the conclusion that metals have high melting points
1) The metal wire becomes hot and therefore the wax at the free end melts and the pin falls down
This proves that metals are good conductors of heat
2) The wire will not melt despite having attained a high temperature.
This follows the conclusion that metals have high melting points