Question

give an activity to compare heat conductivity of copper and iron​

Answer 1

Answer:

Aim :

To compare the electrical conductivity of different metals.

Apparatus :

cell, torch bulb fitted in a holder,connecting wires, different metal strips

Procedure:

1. Let us make a simple circuit by connecting one end of the torch to cell and other end end of torch to metal strip and to cell back [as shown in the figure]

2.Let us insert a piece of Aluminium foil between the wires .And we will observe

3.Repeat the same activity with different metal strips like Iron, copper and zinc.

Observation:

1. In case of aluminium,iron,copper and zinc we observe that , bulb glows in the circuit.

2. This experiment proves that all metals are good conductors of electricity

3. Copper wire is the best conductor among all the metals.

Conclusion:

This experiment proves that all metals are good conductors of electricity and

Copper wire is the best conductor among all the metals.

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