Which of the following relation is correct for rectangular section of width b and depth d subjected to axial force N together with moment M?

(M pr /M p ) ‚Äö√Ñ√∂‚àö√ë‚àö¬® (N/N p ) 2 = 1

(Mpr/Mp) ‚Äö√Ñ√∂‚àö√ë‚àö¬® (N/Np)2 = 1

(Mpr/Mp) ‚Äö√Ñ√∂‚àö√ë‚àö¬® (N/Np) = 1

Which of the following relation is correct for rectangular section of

1.	Which of the following relation is correct for rectangular section of width b and depth d subjected to axial force N together with moment M?
A.	(M<sub>pr</sub>/M<sub>p</sub>) + (N/N<sub>p</sub>)<sup>2</sup> = 1
B.	(M<sub>pr</sub>/M<sub>p</sub>) ‚Äö√Ñ√∂‚àö√ë‚àö¬® (N/N<sub>p</sub>)<sup>2</sup> = 1
C.	(M<sub>pr</sub>/M<sub>p</sub>) + (N/N<sub>p</sub>) = 1
D.	(M<sub>pr</sub>/M<sub>p</sub>) ‚Äö√Ñ√∂‚àö√ë‚àö¬® (N/N<sub>p</sub>) = 1
Answer» B. (M<sub>pr</sub>/M<sub>p</sub>) ‚Äö√Ñ√∂‚àö√ë‚àö¬® (N/N<sub>p</sub>)<sup>2</sup> = 1