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Hall Effect
In physics, the Hall Effect occurs when a current-carrying conductor is placed in a magneticfield, causing a voltage difference across the conductor’s sides. This phenomenon is useful indetermining the type of charge carriers in a…
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Heisenberg Uncertainty Principle
In physics, the Heisenberg Uncertainty Principle states that it is impossible to simultaneouslymeasure certain pairs of properties of a particle, such as its position and momentum, witharbitrary precision. This principle fundamentally challenges classical ideas of…
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Helmholtz Coil
In physics, a Helmholtz Coil is a pair of identical circular magnetic coils arranged to produce auniform magnetic field in the region between them. It is used in experiments that require acontrolled magnetic field, such…
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Higgs Boson
In physics, the Higgs Boson is a subatomic particle associated with the Higgs field, which isresponsible for giving other particles their mass. Discovered in 2012 at CERN, the Higgs Bosonconfirms the theoretical predictions of the…
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Hole
In physics, a Hole refers to the absence of an electron in a semiconductor material, effectivelyacting as a positive charge carrier. Holes are important in the behavior of semiconductors andthe functioning of devices like transistors…
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Joule-Kelvin Effect
In physics, the Joule-Kelvin effect (or Joule-Thomson effect) refers to the change intemperature of a gas when it is forced through a porous plug or valve at constant enthalpy. Theeffect is used in refrigeration and…
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Joule-Thomson Effect
In physics, the Joule-Thomson effect describes the temperature change that occurs when agas expands freely through a small opening without doing external work. In most gases,expansion results in cooling, but some gases (like hydrogen and…
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Kelvin
In physics, Kelvin is a unit of temperature measurement in the International System of Units(SI), where absolute zero, the theoretical point at which all molecular motion ceases, is 0 K.Kelvin is widely used in scientific…
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Kerr Effect
In physics, the Kerr Effect refers to the phenomenon where the refractive index of a materialchanges in response to an applied electric field, particularly when a material exhibits non-linearoptical properties. This effect is named after…
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Kerr-Newman Metric
In physics, the Kerr-Newman Metric is a solution to Einstein’s field equations in generalrelativity, describing the spacetime geometry around a charged, rotating black hole. Itgeneralizes the Kerr solution by adding electric charge, and it’s used…