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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • Unit of pressure in SI system

    Question: Unit of pressure in SI system

    Options:

    Atmosphere
    Dynes/cm²
    Pascal
    mm of mercury

    ✅ Explanation: The Pascal (Pa) is the SI unit of pressure. It is defined as one newton per square meter (N/m²).

    🔑Key Points :
    -The pressure is the force acting perpendicularly on a unit area of the object.
    -The formula for calculating pressure is Pressure = Force/Area.
    -The SI unit of measuring force is the newton (N), and the SI unit of measuring area is ‘square meter’ (m2).
    -Therefore, the SI unit of measuring pressure is ‘newtons per square meter’ (N/m2 or N m–2).
    -It is also called Pascal (Pa).

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