Category: Index
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Lorentz Force
Introduction The Lorentz Force is a fundamental concept in electromagnetism, describing the force experienced by a charged particle moving in an electromagnetic field. It is named after the Dutch physicist Hendrik Lorentz who first derived the force law. Definition and Equation The Lorentz Force on a charged particle is given by the vector sum of…
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Particle in a Box
The particle in a box, also known as the particle in a cubic box, is a fundamental quantum mechanical model that describes a particle confined to a three-dimensional (3D) box with infinite potential energy at and beyond the walls of the box. This model provides insights into energy quantization, wavefunctions, and quantum states for particles…
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Infinite Square Well
The infinite square well is a fundamental one-dimensional model in quantum mechanics that describes a particle confined to a potential energy well with infinitely high walls. This simple model is used to introduce and study basic quantum mechanical concepts such as energy quantization and wavefunctions. The infinite square well provides a valuable pedagogical tool for…
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Zitterbewegung
Zitterbewegung, a German term meaning “trembling motion,” is a theoretical concept in quantum mechanics that describes the rapid oscillatory motion of particles such as electrons. It was first proposed by Erwin Schrödinger in 1930 as a consequence of the relativistic Dirac equation, which describes the behavior of fermions (particles with half-integer spin) like electrons. Properties…
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Jansky (unit)
The Jansky (Jy) is a non-SI unit of spectral flux density used primarily in radio astronomy to quantify the strength of radio sources. The unit is named in honor of the pioneering American radio astronomer Karl Guthe Jansky, who made significant contributions to the field in the early 20th century. Definition of Jansky A Jansky…
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Impulse
Impulse is a fundamental concept in classical mechanics that describes the effect of a force acting on an object over a short period of time. It is equivalent to the change in momentum of the object and is essential for understanding various physical phenomena, such as collisions and explosions. Definition of Impulse Impulse () is…
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Hall Effect
The Hall effect is a phenomenon in which a voltage is generated across a conductor when an electric current flows through it and a magnetic field is applied perpendicular to the direction of the current. This effect was discovered by Edwin Hall in 1879 and has since been widely used in various applications, including measuring…
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Gauss’s Law
Gauss’s Law is a fundamental principle in the field of electromagnetism, specifically related to electric fields and electric charges. It is one of the four Maxwell’s equations that describe the behavior of electric and magnetic fields in various contexts. Gauss’s Law provides a relationship between the electric field produced by a distribution of electric charges…
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Frequency
Frequency is a fundamental concept in both physics and engineering, particularly in the fields of wave mechanics, oscillatory systems, and signal processing. It is a measure of the number of cycles (repetitions) of a periodic event occurring in a unit of time. The SI unit for frequency is hertz which is equivalent to one cycle…
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Free Fall
Free fall is the motion of an object under the influence of gravity alone, with no other forces acting upon it. In an idealized scenario, it’s assumed that there’s no air resistance, and the object falls under a constant gravitational acceleration. Free fall is an essential concept in classical mechanics and serves as a foundation…