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AP EAMCET Engineering 2014 Code A Solved Paper

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Question : 107 of 160
 
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Wires A and B have resistivities ρA and ρB ,( ρB=2ρA) and have lengths lAand lB . If the diameter of the wire B is twice that of A and the two wires have same resistance, then
lB
lA
 is
Validate
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