A thin copper wire of length l metre increases in length by 2% when he – McqOptions

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1.	A thin copper wire of length l metre increases in length by 2% when heated through 10ºC. What is the percentage increase in area when a square copper sheet of lengthlmetre is heated through 10ºC
A.	4%
B.	8%
C.	16%
D.	None of the above
Answer» B. 8%

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