The increase in length is $l$ of a wire of length $L$ by the longitudinal stress. Then the stress is proportional to
A$L/l$
B$l/L$
C$l \times L$
D${l^2} \times L$
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B$l/L$
b (b) Stress $\propto$ Strain$ \Rightarrow $Stress$ \propto \frac{l}{L}$
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