Question

Q13. A) What is Young's modulus ? Describe an experiment to find out Young's modulus of material in the form of a long string wire. B) A wire of mild steel having initial length 1.5 m and diameter 0.60 mm gets extended by 6.3 mm when a certain force is applied to it. If Young's modulus of mild steel is 2.1 X 10' N/m². Calculate force applied​

Answer 1

Answer:

Young's modulus is defined as the ratio of stress to strain. so, Young's modulus = stress/strain. take a specific length, L of any material wire of cross section area A, a load F and due to load , change in length of wire is ∆L