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How do you exactly derive the Permeability and permissivity values of free space from Newton gravitational constant G, Planck constant and the speed of light?
Permeability and permissivity are physical properties that describe the ability of a material to allow the passage of magnetic and electrical fields, respectively. These properties are related to the fundamental constants G (gravitational constant), hbar (reduced Planck's constant), and c (speed of light) through equations known as the Maxwell's equations.
Permeability and permissivity are measured using experimental techniques, such as the Gouy balance or the cavity resonator method. These methods involve applying a known electric or magnetic field to a material and measuring the resulting response, which allows for the determination of the material's permeability and permissivity.
G, hbar, and c are fundamental constants in physics and are crucial for understanding the behavior of electromagnetic fields. In the context of permeability and permissivity, these constants are used to quantify the strength of the magnetic and electric fields, and how they interact with different materials.
Changes in G, hbar, and c can affect the values of permeability and permissivity, as they are directly related to these constants through the Maxwell's equations. For example, changes in the strength of the magnetic field can alter the value of permeability, while changes in the strength of the electric field can affect the value of permissivity.
Permeability and permissivity have numerous practical applications in various fields, such as in the design of electronic components, communication systems, and medical imaging devices. These properties are also important in materials science and engineering, as they can affect the behavior of materials in different environments and applications.