Question

State pascals law and it's application

Answer 1

pascal's law = This is the principle of working of hydraulic lift. It works based on the principle of equal pressure transmission throughout a fluid (Pascal's Law). ... Few more applications include a hydraulic jack and hydraulic press and forced amplification is used in the braking system of most cars.


and its application :

=>The underlying principle of the hydraulic jack and hydraulic press.

=>Force amplification in the braking system of most motor vehicles.

=>Used in artesian wells, water towers, and dams.

=>Scuba divers must understand this principle. At a depth of 10 meters under water, pressure is twice the atmospheric pressure at sea level, and increases by about 100 kPa for each increase of 10 m depth.[5]


hope it's help you ✌✌✌

Answer 2

Pascal's Law states that the pressure changes at every point in the liquid vertically undiminished by the same amount when that amount of pressure is externally applied on the liquid , provided liquid is at rest.

One of the most beautiful application of Pascal's Law is on Hydrostatics.

Suppose we have a U shaped tube.
The opening at one end has an area of cross section a and other end A, where A is much greater than a.

Now from Pascal's Law if a external pressure will be applied, that same amount of excess pressure will be experience at other end .
By Pascal's Law keeping Pressure constant

f/a = F/A
Thus,
F = f*A/a

Observe carefully,
Suppose if we apply very small force at the end having area a
because the area at other end is larger , the force created will also be much much great to keep the pressure constant.
This is a very effective method to generate large forces by small forces.
Thus this method is used in automobile industry.
Where at other bigger end the vehicle is kept and then it is raised when it has to repaired for service.