Consider the equation F = ?P/R. It describes the flow (F) of fluid in a tube in which there is a pressure difference (?P) between the two ends and a resistance (R) to flow. Based on this equation, which is a correct conclusion?
A. The flow of fluid in a tube depends upon the absolute pressure at the beginning of the tube.
B. The rate of fluid flow in a tube will increase if the pressure at the beginning is increased while the pressure at the end of the tube stays the same.
C. The greater the resistance to flow in a tube, the greater the rate of flow for any given pressure difference.
D. If both the resistance and the pressure gradient in a tube increase, the flow must also increase.
E. The rate of flow in a tube will decrease if the resistance to flow is decreased.
B
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