According to Pascal’s law, “pressure applied to an enclosed fluid is transmitted uniformly to every portion of the fluid and the walls of the containing vessel”.
A small force (F1) is applied to the piston with a small area (A1) generating a much bigger force F2 on the larger piston (refer to above figure). A very familiar example of Pascal’s law is that hydraulic lift is utilized to support or lift heavy objects.
A piston with a small cross-section area A1 exerts a force F1 on the surface of a liquid such as oil. The applied pressure P = F1 / A1 is transmitted through a connecting pipe to a larger piston of area A2.
As we know, The applied pressure is the same in both cylinders, so
Where, P = pressure (Pa or N/m2)
F = force (N)
A = area (m2)
In the above figure A2 > A1, therefore, F2 > F1.
Hence, hydraulic life is a force-multiplying device with a multiplication factor equal to the ratio of the areas of the two pistons. dentist’s chairs, car lifts and jacks, any elevators, and hydraulic brakes all use pascal’s law principle.
Applications of Pascal’s Law
- Force intensification in the slowing mechanism of most engine vehicles.
- Utilized in artesian wells, water pinnacles, and dams.
- Scuba jumpers should get this guideline. Beginning from typical barometrical pressure, around 100 kilopascals, the tension increments by around 100 kPa for each expansion of 10 m depth.
- As a rule, Pascal’s standard is applied to restricted space (static stream), yet because of the constant stream process, Pascal’s guideline can be applied to the lift oil component (which can be addressed as a U cylinder with cylinders on one or the flip side).