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What is the correct answer?


According to Darcy's formula, the loss of head due to friction in the pipe is (where f = Darcy's coefficient, l = Length of pipe, v = Velocity of liquid in pipe, and d = Diameter of pipe)

A. flv²/2gd

B. flv²/gd

C. 3flv²/2gd

D. 4flv²/2gd

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