Question

gud morning.... please give simple rules of viscosity...!✌️✌️☺️​

Answer 1

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✍️ Rules of Viscosity

Newton's law of viscosity states that the shear stress between adjacent fluid layers is proportional to the negative value of the velocity gradient between the two layers.

The ratio of shear stress to shear rate is a constant, for a given temperature and pressure, and is defined as the viscosity or coefficient of viscosity.

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Formula of Viscosity

The Viscosity Formula is often expressed using Newton's equation for fluids :-

$\huge\frac{F}{A} = n (\frac{dv}{dr})$

• F represents Force
• A represents Area

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Examples of Viscosity

Water at 20°C has a viscosity of 1.002 cPs.

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