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Two wires A and B are of the same material. Their lengths are in the ratio 1:2 and the diameter are in the ratio 2 : 1. If they are pulled by the same force, then increase in length will be in the ratio(a) 2:1(b) 1:4(c) 1:8(d) 8:1

Amit Saxena , 11 Years ago
Grade upto college level
anser 1 Answers
Arun Kumar

Last Activity: 10 Years ago

Hello Student,

elongation is proportional to lenght / Area
=>lenght/radius^2
=>elong. A/elong. B=1*4/2*1=2/1=2:1
Thanks & Regards
Arun Kumar, Btech, IIT delhi
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