Electricity is the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge. Electricity is related to magnetism, both being part of the phenomenon of electromagnetism, as described by Maxwell's equations. Various common phenomena are related to electricity, including lightning, static electricity, electric heating, electric discharges and many others.
The presence of an electric charge, which can be either positive or negative, produces an electric field. The movement of electric charges is an electric current and produces a magnetic field.
When a charge is placed in a location with a non-zero electric field, a force will act on it. The magnitude of this force is given by Coulomb's law. If the charge moves, the electric field would be doing work on the electric charge. Thus we can speak of electric potential at a certain point in space, which is equal to the work done by an external agent in carrying a unit of positive charge from an arbitrarily chosen reference point to that point without any acceleration and is typically measured in volts.
Electricity is at the heart of many modern technologies, being used for:
Electric power where electric current is used to energise equipment;
Electronics which deals with electrical circuits that involve active electrical components such as vacuum tubes, transistors, diodes and integrated circuits, and associated passive interconnection technologies.Electrical phenomena have been studied since antiquity, though progress in theoretical understanding remained slow until the seventeenth and eighteenth centuries. The theory of electromagnetism was developed in the 19th century, and by the end of that century electricity was being put to industrial and residential use by electrical engineers. The rapid expansion in electrical technology at this time transformed industry and society, becoming a driving force for the Second Industrial Revolution. Electricity's extraordinary versatility means it can be put to an almost limitless set of applications which include transport, heating, lighting, communications, and computation. Electrical power is now the backbone of modern industrial society.
Hello po. Magre-request lang po sana Electrical plan ng High-rise building for academic purposes. Industrial or Residential/Commercial. If residential/commercial, yung 12 or more floors po sana. Preferred po with One line diagram, riser diagram, schedule of loads, and short circuit calculation...
hi po iam new here in phcorner hope i can share my knowledge about eclectrical problem on your car.i can trouble shoot any elctrical problem..installing stereo ,head unit, camera 360,push start alarm sensor dash board problem and other hard trouble heres my number if you want to come on shop at...
For all those whose activities are related to electricity. For professionals and amateurs. This application will help you learn electrical engineering.
We will show you interactive diagrams with which you can easily understand the principles of electricity.
This electrical engineering...
Ano nga ba ang difference ng Ground, Grounded at Grounding? Alamin dito. ;)
Grounding and Bonding by Engr. Brian A. Pasilan, PEE
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Knowledge is power! ;)
Para sa mga gustong matuto neto. ;)
Common Wiring Methods (Wire Sizing, Temperature, Mixing of Wire) by Engr. Raulito C. Baldonado Jr. & Engr. Jaime D. Magsayo
Pa react naman dyan. Haha
Electrical Engineering book. Magandang praktisan daw lalo na para sa board sabi ni sir. Heart para sa matutulongan. comment sa may katanungan. awo. mwuah
Mga boss baka baka may nagtake ng course ng about electrical. Hihingi lang ako ng suggestion na pwedeng iproject like diy Bench power supply, diy transformer. or kung may diagram kayo na pwedeng kuhaan ng ideya.
Guys share ko lang tong book na nakita sa web for Engineering students na may subject at related sa Electrical. Currently yan yung gamit namin ngayon sa subject na Basic Electrical Engineering, dyan din nya kinuha yung mga problems na pinasagot nang teacher sa'min before.
Title...
Sa mga EE at BSEE po dyan, pa help po dito mga master.
Bakit po yung flow of current ng i2 ay papasok sa positive sign ng independent source na 2v? Ang alam ko po kase sa positive sign lumalabas ang flow of current e.
mga idol sino po RME or REE dito may kaunting katanungan lang po ako tungkol sa RME requirment for exam
1rst quistion: ung tesda short course na EIM bali NC 2 NC 3 yan po miron ako , pero kasi d naman umabot ng 1 year kung tutuosin ung pag aaral ko jan eh pwede na po ba un? pwede nabang tawagin...
The best DIY wiring book on the market . . . six times over.
Black & Decker The Complete Guide to Wiring has led the pack as the United States’ best-selling consumer wiring book for more than a decade now, with previous editions selling over one million copies collectively. Simply put, you...