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According to Pascal’s law "A confined liquid's external static pressure is dispersed or transmitted uniformly throughout the liquid in all directions.

Any surface in touch with a fluid is subjected to static pressure, which acts at right angles to it. Pascal also discovered that the pressure at a given place in a static fluid is the same in all planes traveling through that point. Pascal's law is also known as Pascal's principle or the principle of fluid-pressure transmission. Pascal's law was first formulated in 1653 by French mathematician Blaise Pascal.

Pascal's premise can be summed up as follows:

- At rest, pressure changes in any part of fluid are unequally transmitted to all of its locations.
- An enclosed container produces pressure that is applied uniformly and unequally across its surface, acting at right angles to the container's walls.
- According to another definition, any pressure exerted on any part of the enclosed liquid will be equally transferred throughout it.

The Pascal law formula is as follows:

**PA = F**

Where,

- The applied force is F,
- the transmitted pressure is P, and
- the cross-sectional area is A.

**Hydraulic Lift:**The illustration at the top of this page depicts a hydraulic lift in a basic line diagram. The functioning principle of a hydraulic lift is as follows. The idea of equal pressure transmission throughout a fluid (Pascal's Law) governs its operation.- A narrow cylinder (in this example A) is connected to a larger cylinder (in this case B) (in this case B). On both ends, airtight pistons are installed. The insides of the cylinders are filled with a non-compressible fluid.
- Pressure applied to piston A is equally transmitted to piston B, allowing the fluid that cannot be compressed to be used. As a result, piston B can be used to raise huge things such as large machinery or automobiles.
- A hydraulic jack and hydraulic press are two further examples, and most cars employ forced amplification in their braking systems.

**Example**

- The hydraulic crane, hydraulic lift, hydraulic jack, and hydraulic brake system are all examples of Pascal's main applications.
- Pascal's concept is applied by an excavator digging a hole, a car being lifted by a hydraulic lift, and even squeezing a toothpaste tube.

- Any surface in touch with the fluid is subjected to static pressure, which acts at right angles to it.
- Pascal also discovered that the pressure at a given place in a static fluid is the same in all planes traveling through that point.
- Pascal's law is also known as Pascal's principle or the principle of fluid-pressure transmission. Pascal's law was first formulated in 1653 by French mathematician Blaise Pascal.

**Q. What is Pascal’s law?**

"The external static pressure applied to a confined liquid is dispersed or transmitted evenly throughout the liquid in all directions," according to Pascal's law.

**Q. What is the application of Pascal’s law?**

The principle of Pascal's law governs hydraulic lifts.

**Q. Does Pascal’s law apply to gases?**

Pascal's law holds true for gases. Pascal's concept is also known as the principle of fluid (water or gas) pressure transmission.

**Q. Who stated Pascal’s law?**

In 1653, French mathematician Blaise Pascal proposed the Pascal law.

**Q. What is the principle of Pascal’s law?**

According to Pascal's law, pressure applied to a confined fluid is transmitted without change in magnitude to all points of the fluid and the container's walls. Any point in the fluid has the same pressure in all directions.

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- Pascal’s Law: https://byjus.com/physics/pascals-law-and-its-application/** **Accessed 18th April 2022.
- Pascal’s Law: https://en.wikipedia.org/wiki/Pascal%27s_law Accessed 18th April 2022.