Question

Calculate the stress developed in a metal wire when it is strained by 30%. Given young's modulus of material is 200 gpa.

Answer 1

Answer:

Explanation:

Strain=30% = 30/100

Y=200Gpa = 200×10^9N/m^2

Y = Long stress/Long strain

Stress=Y×strain

= 200×10^9×30/100

= 6×10^6N/m^2

Answer 2

To calculate the stress developed in a metal wire

Given:

Strain = 30%

Y( young's modulus of material)  = 200 gpa

Explanation:

strain developed = 30%

                             = 30/100

                             = 0.3

                    Y       = 200 × 10³

Stress developed in metal wire  = Y × strain

                                                      = 200 × 10⁹ × 0.3

                                                      = 6 × 10¹⁰ pa

Answer = 6 × 10¹⁰ pa