Question

Suggest an experiment to compare the conductivity of electricity by
iron, copper, aluminium and zinc. Perform the experiment and
prepare a short report on the results.​

Answer 1

Answer:

Explanation:

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.