If force has dimensions $[MLT^{-2}]$ and area has dimensions $[L^2]$, what are the dimensions of stress?

$A$ and $B$ are two wires. The radius of $A$ is twice that of $B$. They are stretched by the same load. Then the stress on $B$ is

Under elastic limit the stress is

Dimensions of stress are

A force $F$ is needed to break a copper wire having radius $R$. The force needed to break a copper wire of radius $2R$ will be

Under elastic limit the stress is

A metal rod undergoes a strain of $0.05\%$. The energy stored per unit volume is $\left[ {Y = 2 imes {{10}^{11}}N{m^{ - 2}}} \right]$

A cube is subjected to a uniform volume compression. If the side of the cube decreases by ${\rm{1}}\,\,{\rm{\% }}$ the bulk strain is

Stress to strain ratio is equivalent to

Two wires, A and B, made of the same material, have the same length but different cross-sectional areas. Wire A has twice the cross-sectional area of wire B. If the same force is applied to both wires, which wire experiences greater longitudinal stress?

A force $F$ is needed to break a copper wire having radius $R$. The force needed to break a copper wire of radius $2R$ will be