1. Tardigrade
  2. Question
  3. Physics
  4. To determine the Young’s modulus of a wire, the formula is Y =(F/A) × (L/Δ L); where L= length,A= area of cross- section of the wire, Δ L = change in length of the wire when stretched with a force F. What is the conversion factor to change it from CGS to MKS system?

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Q. To determine the Young’s modulus of a wire, the formula
is $Y =\frac{F}{A} \times \frac{L}{\Delta L};$ where $L=$ length,$A=$ area of cross-
section of the wire, $\Delta L =$ change in length of the wire when stretched with a force $F$. What is the conversion factor to change it from $CGS$ to $MKS$ system?

Physical World, Units and Measurements

Solution:

$Y=\frac{F}{A} .\frac{L}{\Delta L}=\frac{\text{dyne}}{cm^{2}} =\frac {10^{-5} N}{10^{-4} m^{2}} =0.1 N/m^{2}$