The 2nd one 2 Two wires of diameter 0 25 cm, one made of steel and other made - Physics - Semiconductor Electronics Materials Devices And Simple Circuits

Question

The 2nd one

2 Two wires of diameter 0 25 cm, one made of steel and other made
of brass are loaded as shown in figure The unloaded length of steel
wire is 1 5 m and that of brass wire is 1 0 m Young's modulus of
steel is 2 0 × 1011 Pa and that the bass is 0 91
× 1011 pa Compute the elongations of steel and
brass wires (1 Pa = 1 Nm–2)
Figure

Anshu Agrawal · Accepted Answer

Dear student,
Diameter of the wires, d = 0.25 m Hence, the radius of the wires, r = d/2= 0.125 cm Length of the steel wire, L1 = 1.5 m Length of the brass wire, L2 = 1.0 m Total force exerted on the steel wire: F1 = (4 + 6) g = 10 × 9.8 = 98 N

Regards