When Poiseuille’s law is rearranged for pressure, what adjustment must be made in driving pressure to maintain the same flowrate when the radius of the tube is reduced by 50 percent?
A. The pressure must be increased to 4 times the original pressure
B. The pressure must be increased to 16 times the original
C. The pressure must be doubled
D. The pressure must be reduced by 50 percent
Answer: B
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