(i) What is pressure? Give its expression with unit.
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P=FA P = F A . The SI unit of pressure is pascal and 1 Pa=1 N/m2 1 Pa = 1 N/m 2 .
Pressure (symbol: p or P) is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled gage pressure) is the pressure relative to the ambient pressure. Various units are used to express pressure.
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Explanation:
Pressure:-
Pressure is defined as the physical force exerted on an object. The force applied is perpendicular to the surface of objects per unit area.
The basic formula for pressure is
F/A (Force per unit area
Unit;
Unit of pressure is Pascals (Pa).
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