Question:

Pressure head in Bernoulli's equation is

Updated On: Jul 28, 2022
  • $\frac{P_{\rho}}{g}$
  • $\frac{P}{\rho g}$
  • $\rho g$
  • $P\rho g$
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The Correct Option is B

Solution and Explanation

Bernoulli's equation is $P+\rho gh+\frac{1}{2}\rho v^{2}$ = a constant, or $ \frac{P}{\rho g}+h+\frac{1}{2} \frac{v^{2}}{g}$ = constant, Here, $ \frac{P}{\rho g}$ is called pressure head.
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Concepts Used:

Bernauli Theorem

In fluid dynamics, Bernoulli's principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in static pressure or a decrease in the fluid's potential energy. The principle is named after Daniel Bernoulli who published it in his book Hydrodynamica in 1738.

Bernaulli's Theorem