Let’s explore the meaning of the final Maxwell’s Equation, which is known as the Ampere’s Law. Ampere was a scientist who performed experiments with forces that act on current carrying wires. The experiment was done in the late 1820s around the same time when Faraday was working on his Faraday’s Law. Faraday and Ampere had […]

## Kirchoff’s Second Law

Kirchhoff’s Second Law states that the “net electromotive force around a closed circuit loop is equal to the sum of potential drops around the loop”. It is termed as Kirchhoff’s Loop Rule which is a outcome of electrostatic field which is conservative. The below figure illustrates that the total voltage around a closed loop must […]

## Wiedemann-Franz Law

The Wiedemann-Franz Law is one of the fundamental law in physics. It was discovered in the year 1835 and named after German physicists, Gustav Wiedemann and Rudolph Franz. Gustav Wiedemann discovered that thermal conductivity and the electrical conductivity are approximately have same value at the same temperature for different metals. In this law: Thermal Conductivity […]

## Planck Equation

What is Planck Equation? Max Planck discovered a theory that energy is transferred in the form of chunks called as quanta, assigning as h. The variable h holds the constant value equal to 6.63 x 10-34 J.s based on International System of units and the variable describes the frequency in s-1. The Planck’s law help […]

## Casimir Effect

The Casimir effect in quantum field theory is small physical forces that arise from a quantized field. It is mainly due to quantum vacuum fluctuations of the electromagnetic field. Hendrik Casimir, a Dutch Physicists, predicted the Casimir Effect. Casimir Effect can be understood with a typical example of a vacuum in space. According to the […]

## Joule-Thomson Effect

The joule-Thomson effect is the change in fluid’s temperature as it flows from a higher pressure region to a lower pressure. According to thermodynamic principle, the Joule-kelvin effect can be explained best by considering a separate gas packet placed in the opposite flow of direction for restriction. For the gas packet to pass through, the […]

## Fermat’s Principle

The refractive behavior of light had been a source of study and consternation for centuries, since no simple relationship between the angles of incidence and refraction could be determined. It was in 1621, that the Dutch investigator Willebrord Snell determined that it is the sines of the angles of incidence and refraction that maintain a […]

## Equivalence Principle

Equivalence principle in case of theory of general relativity is any number of related concepts dealing with inertial mass and equivalence of gravitational. Newton’s Equation of motion for a gravitational field is stated as follows. Gravitational Theory – Development The concept similar to Equivalence Principle came into existence at seventeen century. When Galileo expressed it […]

## Curie’s Law

According to Curie’s Law, the magnetization in a paramagnetic material is directly proportional to the applied magnetic field. If the object is heated, the magnetization is viewed to be inversely proportional to the temperature. The law was discovered by the french physicist, Pierre Curie. It can be framed into an equation. M = C x […]

## Einstein Field Equation

The Einstein Field Equation (EFE) are also known as Einstein’s equation. There are the set of ten equations extracted from Albert Einstein’s General Theory of Relativity. The EFE describes basic interaction of gravitation. The equations were first published in 1915 by Albert Einstein as a tensor equation. Where, = Einstein Tensor = Ricci Curvature Tensor […]