If a bar of sections of two different length and different diameters are in a line and P load is acting axially on them then what will be the change in length of the bar?

If a bar of sections of two different length and different diameters a

1.	If a bar of sections of two different length and different diameters are in a line and P load is acting axially on them then what will be the change in length of the bar?
A.	P/E x (L₁ + L₂)
B.	P/E x (A₁/L₁ + A₂/ L₂)
C.	P/E x (L₁/A₁ + L₂/A₂)
D.	E/P x (L₁/A₁ + L₂/A₂)
Answer» D. E/P x (L₁/A₁ + L₂/A₂)

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If a bar of sections of two different length and different diameters are in a line and P load is acting axially on them then what will be the change in length of the bar?

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