In a single plate clutch μ, F, ro and ri are coefficient of friction, – McqOptions

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1.	In a single plate clutch μ, F, ro and ri are coefficient of friction, axial force, outer radius and inner radius respectively. The frictional torque using uniform wear theory is equal to
A.	\(\frac{1}{2}\mu F ~(r_o+r_i)\)
B.	\(\frac{2}{3}\mu F~(r_o+r_i)\)
C.	μF (ro +ri)
D.	2μF (ro +ri)
Answer» B. \(\frac{2}{3}\mu F~(r_o+r_i)\)

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