2014-07-29

Pressure

Pressure is defined as ‘Force per Unit Area’.

Pressure is defined as the force exerted by an object over the surface of unit Area.                                                     
    i.e. pressure =     force /  area

In practice it is expressed or measured in following units,  
N/m2,
Kg/cm ,
pascal (1Pascal= 1 N/m2), 
height of liquid column (Normally water & Mercury), 
bar (1 bar=105N/m2)