Suggest an experiment to compare the conductivity of electricity by iron, copper, alumini¬um and zinc. Perform the experiment and prepare a short report on the results.
Answers
Explanation:
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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