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Aluminium is used for making electric cables while magnesium is not because;Aluminium has 3 delocalised electrons making it a better conductor than magnesium with only 2 delocalized electrons.Aluminium is resistant to corrosionAluminium has less cost than magnesium
When Aluminium chloride is dissolved in water the resulting solution has a pH of 3 this is because aluminium chloride hydrolyses in water to form hydrochloric acid which is strongly acidic.
Ways of increasing the magnitude of induced current in the conductor include;Increasing the motion conductorIncreasing the strength of the magnetic field.
Classification of good and services are;Free goods and economic goodsConsumer goods and producer goodsIntermediate goods and finished goodsPerishable goods and durable goodsMaterial goods and non-material goodsPublic goods and private goods
Advantages of using electricity in industries during the industrial revolution are;The supply could be regulated/could be switched on and off.There was a clean working environment since electricity is non-pollutant.Electricity could be used for various purpose such as lighting, heating.With electricity industries could be established anywhere.Electricity made the cost of production of goods cheaper.Many industries could draw electricity at one point.