Which of the following relationship is valid for the equilibrium position of the float in a Rotameter? (Where, Df= Drag force on the float Bf = Buoyant force on the float Wf = Weight of the float)?
(A) Df + Bf = Wf
(B) Df = Bf + Wf
(C) Df + Bf + Wf =0
(D) None of these
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