A bimetallic cylindrical bar of cross-sectional area 1 m2 is made by bonding Steel (Young’s modulus = 210 GPa) and Aluminum (Young’s modulus = 70 GPa) as shown in the figure. To maintain tensile axial strain of magnitude 10-6 in Steel bar and compressive axial strain of magnitude 10-6 in Aluminum bar, the magnitude of the required force P (in kN) along the indicated direction is

A bimetallic cylindrical bar of cross-sectional area 1 m2 is made by b

1.	A bimetallic cylindrical bar of cross-sectional area 1 m2 is made by bonding Steel (Young’s modulus = 210 GPa) and Aluminum (Young’s modulus = 70 GPa) as shown in the figure. To maintain tensile axial strain of magnitude 10-6 in Steel bar and compressive axial strain of magnitude 10-6 in Aluminum bar, the magnitude of the required force P (in kN) along the indicated direction is
A.	17
B.	140
C.	210
D.	280
Answer» E.