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Calculate the expansion of a long aluminium wire if its temperature is increased by . The linear expansivity of aluminium is given as . This means that 1 m of aluminium wire extends by 0.023 mm when its temperature is increased by 1 K.
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long aluminium wire extends by if heated by .
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long aluminium wire if its temperature is increased by 
. The linear expansivity of aluminium is given as 
. This means that 1 m of aluminium wire extends by 0.023 mm when its temperature is increased by 1 K.
if heated by 
