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Abstract
This paper predicts the behavior of MR fluids under magnetic fields. MRF-122EG MR fluid is investigated in this study which is hydrocarbon oil based MR fluids. The current values responsible for generating magnetic flux density are determined. It is quite clear that maximum magnetic flux density is 1 tesla corresponding to the current of 4.6 Amp. It is also evident that yield stress of MR fluid depends upon the magnetic flux density produced by fluid particles. The amount of fluid particles is responsible for increase in shear stress produced by MR fluid. However the amount of fluid particles should not increase 60% otherwise the sedimentation problem is encountered.