In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be
A. Less sensitive
B. More sensitive
C. Unaffected of sensitivity
D. Isochronous
Answer: Option A
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STIFFNESS =2[( mrw^2- mr`w`^2)/(r-r`)] *(a/b)^2
So if stiffness increases r-r` decreases and correspondingly r-r` is proportional to sleeve movement so that also decreases making governor less sensitive .
What is the reason