If a bar of two sections of different diameters of same length 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 two sections of different diameters of same length are in

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

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