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C, F 230 V 400 V 50 Hz Angola: C, F 220 V 380 V 50 Hz Anguilla: A, B 110 V 120/208 V 127/220 V 240/415 V 60 Hz Antigua and Barbuda: A, B 230 V 400 V 60 Hz Argentina: C, I IRAM 2073 220 V [9] 380 V 50 Hz Line and neutral reversed compared to Chinese and Australian/NZ type I. Armenia: C, F 230 V 400 V 50 Hz Aruba: A, B, F 127 V
The waveform of 230 V and 50 Hz compared with 120 V and 60 Hz. The utility frequency, (power) line frequency (American English) or mains frequency (British English) is the nominal frequency of the oscillations of alternating current (AC) in a wide area synchronous grid transmitted from a power station to the end-user.
[2] India's grid is connected as a wide area synchronous grid nominally running at 50 Hz. The permissible range of the frequency band is 49.5-50.5 Hz, effective 17 September 2012. The Union Government regulates grid frequency by requiring States to pay more when they draw power at low frequencies. [3]
2.6–3.8 GHz: A common desktop CPU speed as of 2014 5.8 GHz: Electromagnetic – cordless telephone frequency introduced in 2003 10 10: 10 GHz: 3 GHz to 30 GHz: Electromagnetic – super high frequency: 60 GHz: Electromagnetic – 60 GHz Wi-Fi (WiGig) introduced in 2010 10 11: 100 GHz 160.2 GHz
Mains hum, electric hum, cycle hum, or power line hum is a sound associated with alternating current which is twice the frequency of the mains electricity.The fundamental frequency of this sound is usually double that of fundamental 50/60 Hz, i.e., 100/120 Hz, depending on the local power-line frequency.
In this case the FFT frequency bins end up to be at "nice" frequencies for humans. Also allows integer division to 25 Hz and multiples of 25 Hz (50 Hz, 100 Hz, 200 Hz); 26.2144 MHz = 100×2 18 = 25×2 20. 26.5625 Fibre Channel: Quadrupled to 106.250 MHz Fibre Channel clock 26.601712 PAL
In the German-speaking countries, high-voltage electrification began at 16 + 2 ⁄ 3 hertz, exactly one third of the national power grid frequency of 50 Hz. This facilitated the operation of rotary converters from the grid frequency and allowed dedicated railway power generators to operate at the same shaft speed as a standard 50 Hz generator ...
2 · P 8 + M 3 3 000 Hz: 386.3 ¢ Play ⓘ 6 th: perfect fifth: 2 · P 8 + P 5 3 600 Hz: 702.0 ¢ Play ⓘ 7 th: harmonic seventh, septimal minor seventh (‘the lost chord’) 2 · P 8 + m 7 ↓: 4 200 Hz: 968.8 ¢ Play ⓘ 8 th: third perfect octave: 3 · P 8 4 800 Hz: 0.0 ¢ Play ⓘ 9 th: Pythagorean major second harmonic ninth 3 · P 8 + M ...