farad


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farad

(făr`əd) [for Michael FaradayFaraday, Michael
, 1791–1867, English scientist. The son of a blacksmith, he was apprenticed to a bookbinder at the age of 14. He had little formal education, but acquired a store of scientific knowledge through reading and by attending educational lectures including, in
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], unit of electrical capacitancecapacitance,
in electricity, capability of a body, system, circuit, or device for storing electric charge. Capacitance is expressed as the ratio of stored charge in coulombs to the impressed potential difference in volts.
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, equivalent to 1 coulomb of stored charge per volt of applied potential difference.

Farad

 

the unit of electrical capacitance in the International System of Units and in the meter-kilogram-second-ampere (MKSA) system of units. The symbol for the farad, which was named after M. Faraday, is F. One farad is the capacitance of a capacitor in which a charge of 1 coulomb produces a potential difference of 1 volt between the plates. The unit of capacitance in the centimeter-gram-second (cgs) electrostatic system is 1 cm = (109/c2) F ≈ 1.113 × 10–12F, where c is the numerical value of the speed of light in a vacuum in cm/sec. In practice, the following fractional units are used more frequently than the farad: the microfarad (µLF), which equals 10–6F, and the picofarad (pF), which equals 10–12F.

farad

[′fa‚rad]
(electricity)
The unit of capacitance in the meter-kilogram-second system, equal to the capacitance of a capacitor which has a potential difference of 1 volt between its plates when the charge on one of its plates is 1 coulomb, there being an equal and opposite charge on the other plate. Symbolized F.

farad

Physics the derived SI unit of electric capacitance; the capacitance of a capacitor between the plates of which a potential of 1 volt is created by a charge of 1 coulomb.

Farad

A standard unit of measurement for capacitors (capacitance). Named after the English physicist Michael Faraday, one Farad (F) is equal to an increase of one volt when a charge of one coulomb is applied. In microelectronics, measurements are typically in microFarads (mF) or picoFarads (pF). See capacitance, coulomb and Faraday cage.
References in periodicals archive ?
The accurate establishment of the new standard ohm and farad is the important international activity, which commenced with the recently convened congress at Paris.
Maxwell offers ultracapacitor cells ranging in capacitance from one to 3,000 farads and multi-cell modules ranging from 16 to 125 volts.
This TesCom report also provides data on EEStor's layers increasing in energy storage as the frequency is lowered to dc (79 Nano Farads at 100 Hz to 19.
Primary applications for Maxwell's K2 series products, which range from 650 to 3,000 farads, include automotive subsystems, hybrid and electric vehicle drive trains, renewable energy systems, back-up power, grid stabilization, electric rail system power and many other transportation and industrial applications that require burst power and heavy cycling that cannot be efficiently provided by a battery or power supply alone.
Primary applications for Maxwell's large cell products, which range from 650 to 3,000 farads, include hybrid-electric transit buses, electric rail vehicles, cranes, lift trucks and other industrial systems.
Maxwell offers ultracapacitor cells ranging in capacitance from one to 3400 farads and multi-cell modules ranging from 16 to 160 volts, which have proven to deliver high power, whether used alone or paired with batteries, in a variety of applications from automotive or industrial to consumer electronics, transportation and beyond.
Their model capacitors reached 297 farads per gram, a capacitance significantly higher than unstructured nanoporous carbon, including that from biological sources.
Printed capacitors are available for up to 5 nano farads in a 50 sq.
Thinking about anything that could be measured in grams and kilograms, joules or watts, farads or therms, made the world feel good and solid under his feet, while art and poetry made him feel lost and lightheaded.
Measured in farads, capacitance represents the amount of stored charge per volt.
The company offers the highest power and energy density ultracapacitors and hybrid capacitors ranging in size from 100 Farads to 3,000 Farads.
The company offers the broadest range of cell styles in the industry, from 100 Farads to 3,000 Farads, with both iCAP cylindrical and THiNCAP pouch cell form factors.