![]() The letter phi is commonly used in physics to represent wave functions in quantum mechanics, such as in the Schrödinger equation and bra–ket notation: ⟨ ϕ | ψ ⟩ ).The lowercase letter φ (or often its variant, ϕ) is often used to represent the following: The confusion arises because of these two different definitions of electric flux. However, if you define electric flux based on D 0E D 0 E in place of E E then the unit is C C. ![]() JSTOR ( August 2020) ( Learn how and when to remove this template message) In mksi units the unit of electric flux is Vm.Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. This article needs additional citations for verification. It dimensions are M元T-2Q-1 and its SI units are N m2 C-1, although later on, after we have met the unit called the volt, we shall prefer to express E E in V m. Whereas E E is an intensive quantity, E E is an extensive quantity. Some uses require the old-fashioned 'closed' glyph, which is separately encoded as the Unicode character U+03D5 ϕ GREEK PHI SYMBOL. The product of electric field intensity and area is the flux E E. The Cyrillic letter Ef (Ф, ф) descends from phi.Īs with other Greek letters, lowercase phi (encoded as the Unicode character U+03C6 φ GREEK SMALL LETTER PHI) is used as a mathematical or scientific symbol. In traditional Greek numerals, phi has a value of 500 ( φʹ) or 500,000 ( ͵φ). It may be that phi originated as the letter qoppa (Ϙ, ϙ), and initially represented the sound /kʷʰ/ before shifting to Classical Greek. The romanization of the Modern Greek phoneme is therefore usually ⟨f⟩. ![]() 4th century AD to 15th century AD) it developed its modern pronunciation as a voiceless labiodental fricative ( ). Today's puzzle is listed on our homepage along with all the possible crossword clue solutions. 4th century BC to 4th century AD), its pronunciation shifted to that of a voiceless bilabial fricative ( ), and by the Byzantine Greek period (c. This crossword clue might have a different answer every time it appears on a new New York Times Puzzle, please read all the answers until you find the one that solves your clue. During the later part of Classical Antiquity, in Koine Greek (c. 9th century BC to 4th century BC), it represented an aspirated voiceless bilabial plosive ( ), which was the origin of its usual romanization as ⟨ph⟩. Phi ( / f aɪ/ uppercase Φ, lowercase φ or ϕ Ancient Greek: ϕεῖ pheî Modern Greek: φι fi ) is the twenty-first letter of the Greek alphabet.
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