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The load V elongation graph for four wir...

The load V elongation graph for four wires of the same materials shown in the figure. The thinnest wire is represented by the line

A

OC

B

OD

C

OA

D

OB

Text Solution

Verified by Experts

The correct Answer is:
c
`:' Y = (f)/((pi r^(2))/(I//L))`
`:. R^(2) = (FL)/(pi. YI)`
It is clear from the graph that, for same value of load (F), elongations `I_(1), I_(2), I_(3)m I_(4)` are such that `I_(4) gt I_(3) gt I_(2) gt I_(1)`
so, OA represents the thinnest wire.
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