Question

Drawing of ductile metals into thin wires results in:

• A. increase in molecular separation
• B. increase in stress in the metal
• C. reduction of cross-sectional area
• D. all of these

Answer 1

The correct option is D all of these

On application of tensile forces to a ductile material displaces the molecules, and hence increases in molecular separation which results in an increase in the stress level inside the metal. This process also results in increase in length and a decrease in the cross-sectional area of the metal.