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Daraf

Daraf

Overview
The daraf is the unit of electrical elastance (symbol: F-1), the voltage across a capacitor after accepting a charge of 1 Coloumb; it is the reciprocal of the farad. Proposed by Arthur Edwin Kennelly
Arthur Edwin Kennelly
Arthur Edwin Kennelly , was an Indian-American electrical engineer.-Biography:Kennelly was born in Colaba, in South Mumbai, India and was educated at University College School in London. He was the son of an Irish naval officer Captain David Joseph Kennelly and Catherine Gibson Heycock...

 in 1936 as a backwards spelling of farad
Farad
The farad is the SI unit of capacitance. The farad is named after the English physicist Michael Faraday.- Definition :A farad is the charge in coulombs a capacitor will accept for the potential across it to change 1 volt. A coulomb is 1 ampere second. Example: A 47mA current causes the voltage...

, the daraf is not a recognized SI
Si
Si, si, or SI may refer to :- Places :* Mount Si, a mountain in state of Washington* Si County, county in Anhui, China* Si River, a river in China* Slovenia, a European nation Si, si, or SI may refer to (all SI unless otherwise stated):- Places :* Mount Si, a mountain in state of Washington* Si...

unit.
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Encyclopedia
The daraf is the unit of electrical elastance (symbol: F-1), the voltage across a capacitor after accepting a charge of 1 Coloumb; it is the reciprocal of the farad. Proposed by Arthur Edwin Kennelly
Arthur Edwin Kennelly
Arthur Edwin Kennelly , was an Indian-American electrical engineer.-Biography:Kennelly was born in Colaba, in South Mumbai, India and was educated at University College School in London. He was the son of an Irish naval officer Captain David Joseph Kennelly and Catherine Gibson Heycock...

 in 1936 as a backwards spelling of farad
Farad
The farad is the SI unit of capacitance. The farad is named after the English physicist Michael Faraday.- Definition :A farad is the charge in coulombs a capacitor will accept for the potential across it to change 1 volt. A coulomb is 1 ampere second. Example: A 47mA current causes the voltage...

, the daraf is not a recognized SI
Si
Si, si, or SI may refer to :- Places :* Mount Si, a mountain in state of Washington* Si County, county in Anhui, China* Si River, a river in China* Slovenia, a European nation Si, si, or SI may refer to (all SI unless otherwise stated):- Places :* Mount Si, a mountain in state of Washington* Si...

unit.