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The ohm (symbol: Ω, the uppercase Greek letter omega) is the unit of electrical resistance in the International System of Units (SI). It is named after German physicist Georg Ohm (1787–1854).
The Om symbol, with epigraphical variations, is also found in many Southeast Asian countries. In Southeast Asia, the Om symbol is widely conflated with that of the unalome; originally a representation of the Buddha's urna curl and later a symbol of the path to nirvana, it is a popular yantra in Southeast Asia, particularly in Cambodia and Thailand.
Ohm explained his experimental results by a slightly more complex equation than the modern form above (see § History below). In physics, the term Ohm's law is also used to refer to various generalizations of the law; for example the vector form of the law used in electromagnetics and material science:
The symbol for the highest power level of a PSI attack in the Mother/EarthBound games; A symbol used by U.S. citizens in the 1960s & 1970s to denote resistance to the U.S. war in Viet Nam. Adapted from the SI unit for electrical resistance. [11] It's used along with Alpha in the Alpha and Omega, a Christian symbol.
The resistivity can be expressed using the SI unit ohm metre (Ω⋅m) — i.e. ohms multiplied by square metres (for the cross-sectional area) then divided by metres (for the length). Both resistance and resistivity describe how difficult it is to make electrical current flow through a material, but unlike resistance, resistivity is an ...
[1] Exceptions to this include characters in certain writing systems that are also in use as political or religious symbols, such as 卐 (U+5350), the swastika encoded as a Chinese character (although it is also encoded as a religious symbol at U+0FD5); or ॐ (U+0950), the Om symbol which is, strictly speaking, a Devanagari ligature.
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Ohm (symbol Ω) is a unit of electrical resistance named after Georg Ohm. ... Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; ...