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Topic: Volt-ampere

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volt-ampere [n] a unit of electrical power in an AC circuit equal to the power dissipated when 1 volt produces a current of 1 ampere. lookwayup.com /lwu.exe/lwu/d?s=f&w=volt-ampere   (24 words)

Branch Circuit Calculations Amperes = 200 watts/ 120 volts, Amperes = 1.7 amperes. The minimum number of 20 ampere 120 volt branch circuits required to serve the general lighting load for a 3,000 square foot one family dwelling unit is ______ circuits. A 20 ampere, 120 volt, 2-wire branch circuit has a maximum load capacity of ______ watts or volt-amperes. www.electrician.com /electa1/electa2htm.htm   (1513 words)

VNS Physics Kilovolt Ampere - One kilovolt ampere - KVA - is equal to 1,000 volt amperes. One ampere is the current which one volt can send through a resistance of one ohm. In alternating current systems, the volts and amperes may or may not be 100% synchronous. www.epilepsy-navigator.com /id22.html   (572 words)

Page Title In both the 30 ampere and 50 ampere systems, the shore cord contains three conductors--the black conductor is ungrounded or "hot" and carries 125 volts of electricity; the white conductor is the grounded conductor or neutral, and the green conductor is the ground (Fig. In still larger yachts, a 50 ampere, 125/250 volt system is employed which has a shore cord containing four conductors--the white neutral conductor, the green grounding conductor, and red and black ungrounded conductors each carrying 125 volts. A 15 ampere, 125 volt system has 1875 available watts, whereas the 50 ampere, 250 volt system has 12,500 available watts. www.marinemechanic.com /site/page48.html   (1334 words)

Amperes.doc Voltage is measured in volts, current is measured in amps and resistance is measured in ohms. One ampere of current represents one coulomb of electrical charge (6.24 x 1018 charge carriers) moving past a specific point in one second. The change to 42 volts will help cars meet the greater electrical demand placed on them without having to increase the size of wires and generators to handle the greater current. www.tomax7.com /aplus/APlusCD/Amperes.doc   (1435 words)

Electricity Glossary One Henry is equal to the inductance in which the change of one ampere per second results in an induced voltage of one volt. This is the current in amperes that a motor requires to produce rated nameplate horsepower output when rated nameplate voltage and frequency is provided to it's terminals. Ampere - electric current produced by one volt applied across a resistance of one ohm. www.nooutage.com /glossary.htm   (3125 words)

Units: V In an AC circuit, the electric potential or voltage (measured in volts) and the current (in amperes) alternate direction, varying smoothly according to sine curves. In an alternating current circuit, if the potential (measured in volts) and the current (measured in amperes) vary in phase with each other, then the power delivered (measured in watts) is the product of the potential and the current. Electric potential is measured in volts, with one volt representing a potential of one joule per coulomb of charge. www.unc.edu /~rowlett/units/dictV.html   (1698 words)

Code Connection September 2000 In addition GFCI protection is required for all 15 or 20 ampere, 125 volt receptacles installed in the area of a basement not intended as a habitable room [210-8(a)(5)]. A new sentence was added to Section 210-52(g) stating that where a portion of the basement is finished into a habitable room(s), a 15 or 20 ampere, 125 volt receptacle outlet shall be installed in the unfinished portion of the basement. The intent of the new sentence is to ensure that the unfinished portion of a basement has one GFCI-protected 15 or 20 ampere, 125 volt receptacle outlet, even if a portion of the basement is finished into a habitable room(s). www.leviton.com /sections/techsupp/code/codeconsept2000.htm   (239 words)

history of the ampere The ampere was a derived unit, defined as the current produced in a conductor with a 1-ohm resistance when there was a potential difference of 1 volt between its ends. For electric current, the international ampere was defined as that unvarying current that would deposit 0.001 118 000 grams of silver per second from a solution of silver nitrate in water. Investigation showed the new definition led to a new value for the ampere that was 1.000 15 times the mean international ampere as previously realized in the various national standards laboratories. www.sizes.com /units/ampHist.htm   (639 words)

04pg33.txt For example, if a circuit requires one volt of electrical pressure to cause one ampere of current to flow, the resistance of the circuit is one ohm, which would be written as 1½. If 3 volts of electrical pressure is required to cause one ampere of current to flow, the resistance is 3 volts per ampere or 3V/A and the resistance is 3½s. If 1200 volts were applied to this circuit, a current of 12 amperes would flow because the ratio of volts/amperes with a 100½ resistor is always 100/1. www.ibiblio.org /intergarden/alternative-energy/homepower-magazine/archives/4/04pg33.txt   (977 words)

"volt" - Physics Help and Math Help - Physics Forums A volt is the potential difference across a conducting material which 1 ampere of current dissipates 1 watt of power. A volt is the potential difference that will cause 1 ampere of current to flow through a 1 ohm resistance. The formula is Ohm's law, E = IR, where E is in volts, I is in amperes and R is in ohms. www.physicsforums.com /showthread.php?t=33975   (737 words)

volt-ampere - a Whatis.com definition - see also: VA The power, P (in watts) in a DC circuit is equal to the product of the voltage V (in volts) and the current I (in amperes): In a DC circuit, 1 VA is the equivalent of one watt (1 W). In an AC circuit, power and VA mean the same thing only when there is no reactance. whatis.techtarget.com /definition/0,,sid9_gci539345,00.html   (358 words)

volt - a Whatis.com definition A potential of one volt appears across a resistance of one ohm when a current of one ampere flows through that resistance. The volt (symbolized V) is the Standard International (SI) unit of electric potential or electromotive force. A millivolt (symbolized mV) is equal to one-thousandth of a volt (1 mV = 10 whatis.techtarget.com /definition/0,,sid9_gci530611,00.html   (267 words)

RCA CHAPTER 13-10 If it is running and no readings are obtained, stop the M-G set and check the 10 ampere fuse in the 250 volt line at the back of the rack (See Figure 116) and the 20 ampere 250 volt fuse in the low voltage fuse box at the M-G set. If the storage battery ammeter fails to indicate either charge or discharge when the low voltage generator field rheostat is manipulated, the indication is that one of the 60 ampere fuses at the back of the panel is burned out. Check the 60 ampere fuses at the back of the panel and the 60 ampere fuse in the low voltage fuse box at the M-G set. www.widescreenmuseum.com /sound/rca13-10.htm   (560 words)

volt-ampere. The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. A unit of electric power equal to the product of one volt and one ampere, equivalent to one watt. www.bartleby.com /61/33/V0143300.html   (83 words)

n7.htm A current of 10 ampere rms at a frequency of 50 Hz flows through a 100 ohm resistor. Three 18 ohm resistors are connected in parallel across a 12 volt supply. The DC input power of a transmitter operating at 12 volt and drawing 500 milliamp would be: www.nzart.org.nz /NZART/exam/exsys/n7.htm   (291 words)

hiamp.txt Send 1.0 amperes into the coil's connections, and you have a circular "cable" which has one ampere within each "strand", and 200 amperes within the cable as a whole. But if we instead wind a 100-turn coil and send 1.0 amperes through it, the end result is the same: the "cable" still has 100 amperes within, and has a very strong, circular magnetic field outside. One example is a raft of compasses with a 200-amp cable running through the center of the raft. www.eskimo.com /~billb/exhibits/hiamp.txt   (1506 words)

Code Connection November 2000 All _____ ampere, 125 volt receptacle outlets that are not a part of the permanent wiring of the building or structure and are in use by personnel for temporary power shall have ground-fault circuit-interrupter protection for personnel. The new rule now requires 30 ampere, 125 volt receptacle outlets used by personnel for temporary power to have GFCI protection for personnel. Many construction sites have a 30 ampere, 125 volt receptacle with a locking receptacle without GFCI protection. www.leviton.com /sections/techsupp/code/codeconnnov2000.htm   (173 words)

E.T.E. Code Quiz There are 210 fixtures rated 277-volts at.63 amperes each. The minimum ampacity of the feeder to supply the lighting shall be __________ amperes. Each apartment is connected with a 200 ampere rated feeder. www.elec-toolbox.com /codequiz/March04/cq-march.htm   (397 words)

Ericson This section now requires GFCIs for all 125 volt, single phase, 15-, 20- and 30-ampere receptacle outlets that are used to supply temporary power to equipment used by personnel during construction, remodeling, demolition, maintenance, and repair activities. This change requires GFCI protection for all 125 volt, 15- and 20-ampere receptacle outlets used by personnel at carnivals, circuses and fairs. This section requires protection for receptacle outlets other than 125 volt, 15- and 20-ampere, which are those covered in Section 525-18(a). www.ericson.com /trc/tech_tips_detail.asp?id=3   (544 words)

KVA - Kilo Volt-Ampere Kilovolt Ampere rating designates the output which a transformer can deliver at rated voltage and frequency without exceeding a specified temperature rise. Abbreviation for kilovolt amperes (1000 x volt amperes). kilo Volt Amp or 1,000 multiplied by volts multiplied by amps. www.auditmypc.com /acronym/KVA.asp   (188 words)

BASIC ELECTRONIC PRINCIPLES An electric field generates a force acting on electric charges within the field, the electric potential represents the amount of work, measured in volts, which must be done to move a unit of charge against this force. -the ampere is the unit of current (1 ampere = 1 coulomb/sec) Electrical Potential (abbreviated V or E, units of volts) www.bios.niu.edu /lotshaw/bios493/electric.html   (739 words)

mandt.htm Variability of Characteristics If the grid voltage is made a few volts negative, then the grid current reverses. For a reverse bias greater than a few tenths of a volt... On the other hand, for a forward bias greater than a few tenths of a volt... www.geofex.com /Article_Folders/mandt.htm   (2087 words)

Search Results for volt-ampere - Encyclopædia Britannica In the case of direct current (DC), the conductance in siemens is the reciprocal of the resistance in ohms (S = amperes per volts); in the case of alternating current... Since 1948 the ampere has been defined as the constant current which, if maintained in... These electrons, though mobile within the metal, are rather tightly bound to it. www.britannica.com /search?query=volt-ampere&submit=Find&source=MWTEXT   (446 words)

Zubehör Indication of Volt, Ampere, capacity in % and Amperehours Volt- and Ampere meter with shunt - only for indoor-mounting indication of ampere, volt and capacity in % and Ah Dimension 125 x 45 mm www.kraeutler.at /ba_e.htm   (86 words)

63980.010830&ELEMENT_SET=DECL The advantage of the invention is primarily in the fact that it enables the functioning of the plasma torch thus constructed with a voltage of only several hundred volts, at the same time increasing the power of the device when compared to the analogous constructions of For this purpose, the joint middle opening of the anode set in the construction, extending from the cathode to the exit opening of the anode, has the profile of a Laval nozzle, enabling the expansion of the working gas flowing through it, for the purpose of achieving the maximal speed. During the functioning of the device according to the invention, the plasma thus formed achieves its full development due to the long path of the electric arc from the cathode to the anode. www.wipo.int /cgi-pct/guest/getbykey5?KEY=01/63980.010830&ELEMENT_SET=DECL   (2630 words)

VOLT-AMPERE Meaning and Definition - Dictionary - eLook.org [noun] a unit of electrical power in an AC circuit equal to the power dissipated when 1 volt produces a current of 1 ampere www.elook.org /dictionary/volt-ampere.html   (32 words)

Digital Voltmeter and Amperemeter Volt Ampere meter Even if the digita On the contrary in the Fig.2 that it concern the ampere meter, this resistor does not exist, because the circuit is connected differently, thus the current pass through the R5, creating a fall of voltage, in her terminal, proportional current that it pass from this. Digital Voltmeter and Amperemeter Volt Ampere meter Even if the digita Voltmeter: Short circuit in the input, pins 10 and 11 [IC1] and we regulate the RV1, until we take clue in the Display, zero in all the digits. www.radiolocman.com /electrical-engineering/circuit-cache.html?di=11173   (534 words)

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