2. What is liquid pressure Whatis the device used to measure liquid
pressure What are its laws?
Answers
Answer:
Fluid pressure is a measurement of the force per unit area. Fluid pressure can be caused by gravity, acceleration, or forces in a closed container. Since a fluid has no definite shape, its pressure applies in all directions.Instruments used to measure and display pressure in an integral unit are called pressure meters or pressure gauges or vacuum gauges. A manometer is a good example, as it uses the surface area and weight of a column of liquid to both measure and indicate pressure.
The laws of liquid pressure are
1) liquid exerts pressure on the wall of container. 2) pressure force increases as the depth of liquid increases.
3) pressure force will be same at all points inside the liquid at equal depth.
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Answer:
The pressure exerted by a liquid on the wall and bottom of the container in which it is kept is called liquid pressure. The device which is used to measure the liquid pressure is manometer. i Pressure is same at all points on a horizontal plane, in case of stationary liquid. ii Pressure is same in all directions about a point inside the liquid.