| 单词 | electromagnetic unit |
| 释义 | electromagnetic unit (once / 2363863 pages) n WORD FAMILY electromagnetic unit: electromagnetic units USAGE EXAMPLESThe electromagnetic unit of current defined as above is 3 � 1010 times larger than the electrostatic unit. Various, Encyclopaedia Britannica, 11th Edit...(2011) In the above formula the current I is measured in absolute electromagnetic units. Various, Encyclopaedia Britannica, 11th Edit...(2011) n any of various systems of units for measuring electricity and magnetism Syn|Hypo|Hyper emu capacitance unit a measure of the capacity of a circuit component to store charge charge unit, quantity unita measure of the quantity of electricity (determined by the amount of an electric current and the time for which it flows) conductance unita measure of a material's ability to conduct an electrical charge current unita measure of the amount of electric charge flowing past a circuit point at a specific time elastance unitthe reciprocal of capacitance field strength unitan electromagnetic unit of magnetic intensity flux density unita measure of the amount of flux per unit of cross sectional area inductance unita measure of the property of an electric circuit by which an electromotive force is induced in it light unita measure of the visible electromagnetic radiation magnetomotive force unita unit of measurement of magnetomotive force potential unita measure of the potential energy of a unit charge at a given point in a circuit relative to a reference point (ground) power unita measure of electric power radioactivity unita measure of radioactivity resistance unitthe reciprocal of conductance picofarada unit of capacitance equal to one trillionth of a farad microfarada unit of capacitance equal to one millionth of a farad millifarada unit of capacitance equal to one thousandth of a farad F, faradthe capacitance of a capacitor that has an equal and opposite charge of 1 coulomb on each plate and a voltage difference of 1 volt between the plates abfarada capacitance unit equal to one billion farads C, ampere-second, coulomba unit of electrical charge equal to the amount of charge transferred by a current of 1 ampere in 1 second abcoulomba unit of electrical charge equal to 10 coulombs ampere-minutea unit of charge equal to 60 coulombs ampere-houra unit of charge equal to 3600 coulombs S, mho, reciprocal ohm, siemensa unit of conductance equal to the reciprocal of an ohm A, amp, amperethe basic unit of electric current adopted under the Systeme International d'Unites mA, milliampereone thousandth of an ampere abamp, abamperea unit of current equal to 10 amperes ampere, international amperea former unit of electric current (slightly smaller than the SI ampere) darafa unit of elastance equal to the reciprocal of a farad gammaa unit of magnetic field strength equal to one-hundred-thousandth of an oersted oerstedthe magnetic field strength 1 cm from a unit magnetic pole microgaussa unit of magnetic flux density equal to one millionth of a gauss gaussa unit of magnetic flux density equal to 1 maxwell per square centimeter teslaa unit of magnetic flux density equal to one weber per square meter abhenrya unit of inductance equal to one billionth of a henry millihenrya unit of inductance equal to one thousandth of a henry H, henrya unit of inductance in which an induced electromotive force of one volt is produced when the current is varied at the rate of one ampere per second illumination unita measure of illumination luminance unita measure of luminance luminous flux unita measure of luminous flux per unit area candlepower unit, luminous intensity unita measure of luminous intensity exposurethe intensity of light falling on a photographic film or plate Gb, Gi, gilberta unit of magnetomotive force equal to 0.7958 ampere-turns ampere-turna unit of magnetomotive force equal to the magnetomotive force produced by the passage of 1 ampere through 1 complete turn of a coil; equal to 1.257 gilberts magnetona unit of magnetic moment of a molecular or atomic or subatomic particle abvolta unit of potential equal to one-hundred-millionth of a volt mV, millivolta unit of potential equal to one thousandth of a volt microvolta unit of potential equal to one millionth of a volt nanovolta unit of potential equal to one billionth of a volt picovolta unit of potential equal to one trillionth of a volt femtovolta unit of potential equal to one quadrillionth of a volt (or one thousandth of a nanosecond) V, volta unit of potential equal to the potential difference between two points on a conductor carrying a current of 1 ampere when the power dissipated between the two points is 1 watt; equivalent to the potential difference across a resistance of 1 ohm when 1 ampere of current flows through it kV, kilovolta unit of potential equal to a thousand volts abwatta power unit equal to the power dissipated when 1 abampere flows across a potential difference of 1 abvolt (one ten-thousandth of a milliwatt) milliwatta unit of power equal to one thousandth of a watt W, watta unit of power equal to 1 joule per second; the power dissipated by a current of 1 ampere flowing across a resistance of 1 ohm kW, kilowatta unit of power equal to 1000 watts megawatta unit of power equal to one million watts H.P., HP, horsepowera unit of power equal to 746 watts var, volt-amperea unit of electrical power in an AC circuit equal to the power dissipated when 1 volt produces a current of 1 ampere kilovolt-amperea unit of electrical power equal to 1000 volt-amperes millicuriea unit of radioactivity equal to one thousandth of a curie Ci, curiea unit of radioactivity equal to the amount of a radioactive isotope that decays at the rate of 37,000,000,000 disintegrations per second Gy, graythe SI unit of energy absorbed from ionizing radiation; equal to the absorption of one joule of radiation energy by one kilogram of matter; one gray equals 100 rad R, roentgena unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air rutherforda unit strength of a radioactive source equal to one million disintegrations per second REM(Roentgen Equivalent Man) the dosage of ionizing radiation that will cause the same amount of injury to human tissue as 1 roentgen of X-rays rada unit of absorbed ionizing radiation equal to 100 ergs per gram of irradiated material abohma unit of resistance equal to a billionth of an ohm ohma unit of electrical resistance equal to the resistance between two points on a conductor when a potential difference of one volt between them produces a current of one ampere megohma unit of resistance equal to one million ohms unit, unit of measurement any division of quantity accepted as a standard of measurement or exchange |
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