The ratio of the height of a Porter governor (when the length of arms and links are equal) to the height of a Watt’s governor is
where m = Mass of the ball, and M = Mass of the load on the sleeve.
1
\(\frac{m}{{m + M}}\)
2
\(\frac{M}{{m + M}}\)
3
\(\frac{{m + M}}{M}\)
4
\(\frac{{m + M}}{m}\)