Liquid flows through a pipe of radius 5 cm with velocity of 2 m/s having density of 1x103 kg/m3 and coefficient of viscosity is 0.24 Ns/m2 . Then flow of liquid is
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Re = ρud/µ
=103×2×0.05/0.24= 42.9167
Since this is less than 2000 flow is laminar so Poiseuille’s equation applies.
∆p= 32µ2µ/d2
= 32×0.24×1×2/(0.05)2
= 15.36pa
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