Question

an enlongation of 0.2% ina wire of cross-section 10-4m2 causes a tension of 1000N . then it's young's modulus is ​

Answer 1

Answer:

$\gamma = (force \times length) \div area \times elongation$

0.2%=0.002

¥ = 1000/ 10-4 ×0.002

= 5× 10^9 Npm^2