Procedure to define the Specific Gravity
Briefly explain the procedure to define the Specific Gravity?
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The Specific Gravity, SG, is the unit less quantity which provides the scientist or engineers an idea of how dense a substance is as compared to water. The density of water that is one kilogram per liter (at 4 oC), is assigned a SG of about 1.000. When a substance is denser than water, it will contain a SG greater than 1.000; whenever it is less dense than water, its SG will be a value less than 1.000 (however greater than zero). Let's state a substance consists of a density of 2.5 kilograms per liter. That signifies that its SG is 2.5 (that is, 2.5 divided by 1.000).
Wiedemann-Franz law: It is the ratio of the thermal conductivity of any pure metal (substance) to its electrical conductivity is just about constant for any specified temperature. This law holds pretty well apart from at low temperatures.
Explain Poisson equation and Poisson spot: Poisson equation (S.D. Poisson): The differential form of Gauss' law, that is, div E = rho, Pois
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Explain Kirchhoff's rules or Kirchhoff's Loop rule and Point rule? Kirchhoff's rules (G.R. Kirchhoff) <
Explain Ampere's law? Ampere's law (A.M. Ampere):
Joule-Thomson effect: Joule-Kelvin effect (J.P. Joule, W. Thomson [later Lord Kelvin]): The change in temperature which takes place whenever a gas expands into an area of lower pressure.
What is Arago spot? The bright spot which appears in the shadow of a consistent disc being backlit by monochromatic light originating from a point source. &n
Peltier effect (J.C.A. Peltier; 1834): The modification in temperature produced at a junction among the two dissimilar metals or semiconductors whenever an electric current passes through the junction.
Stefan-Boltzmann constant: sigma (Stefan, L. Boltzmann): The constant of proportionality exist in the Stefan-Boltzmann law. It is equivalent to 5.6697 x 10-8 W/m2/K4.
why quantum physics is studied? give me some of topics
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