UCE PHYSICS 2011 PAPER 1 QTN 25

Aluminium expands more than copper for the same temperature change.

 

Which of the following is true when a copper -aluminium bimetallic strip is heated?

 

(i) It curves with copper on top

 

(ii) It curves with aluminium on top

 

(iii) It increases in length

 

 

 

 

 

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