**Pascal’s Law:**

*Pascal's law or the Principle of transmission of fluid-pressure*

**states that "pressure exerted anywhere in a confined incompressible fluid is transmitted equally in all directions throughout the fluid such that the pressure ratio (initial difference) remains the same.**If F is the magnitude of the normal force on the piston and A is the surface area of a piston, then the pressure, P, of the fluid at the level to which the device has been submerged as the ratio of the force to area.

P=F/A

Since the pressure is force per unit area, it has units of N/m

^{2}in the SI system. Another name for the SI unit of pressure is Pascal (Pa)

1
Pa=1N/M2

**An important application of Pascal's law is the hydraulic jack**

A force F

_{1}is applied to a small piston of area A_{1}. The pressure is transmitted through a fluid to a larger piston of area A_{2}. Since the pressure is the same on both sides,*Here, P = F*

_{1}/A_{1}= F_{2}/A_{2}.
Therefore, the force F

_{2}is larger than F_{1}by multiplying factor A_{2}/A_{1}.

**Bolt tightening with Hydraulic Jack**Hydraulic jack |

Hydraulic pump |

**VIEW TOTAL PRODUCE IN PHOTOS**

**Use:**
Bolt tightening, Hydraulic
brakes, Car lifts,Load lifting in industries etc.

VISITORS ZONE |

**Q:What should be properties of hydraulic oil?**

**How a pneumatic jack differ from strand jack?**

**Please put your answer in comment section for discussion**

A pneumatic jack is a hydraulic jack that is actuated by compressed air where A strand jack is a specialized hydraulic jack that grips steel cables.

ReplyDeleteA hydraulic jack is a jack that uses a liquid to push against a piston. This is based on Pascal’s Principle.

ReplyDeleteHydraulic jacks are distributed to different types with a difference in construction. There are Floor Jacks in which the horizontal piston presses on the short end of a bell crank, with the long arm providing the vertical motion to an elevating pad, kept level with a horizontal linkage. Floor jack

ReplyDelete