A steel wire of length 20 cm and uniform cross section 1 mm

Last updated: 6/27/2023

A steel wire of length 20 cm and uniform cross section 1 mm is tied rigidly at both the ends The temperature of the wire is altered from 40 C to 20 C Coefficient of linear expansion for steel a 1 1 x 10 5 C and Y for steel is 2 0 10 1 N m The change in tension of the wire is a 2 2 106 newton b 16 newton c 8 newton d 44 newton 1 0 X