Arrange the following metals in their increasing order of ability to conduct electricity: silver, aluminium, copper, gold. Why is copper the first choice for making conducting wires? [3 MARKS]

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Solution

Correct Order : 1 Marks
Reason for Copper : 2 Marks

The correct order for increasing order of electrical conductivity is Aluminium < gold < copper < silver.

Copper is the element of choice even though silver is a better conductor due to its cheap price. The other metals are expensive compared to Copper and hence Cu is used to lower manufacture costs.

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