electric
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.
View More On Wikipedia.org
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.
View More On Wikipedia.org
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Win a new electric van worth £26,805!
Don‘t be left out in the cold this Winter. Get yourself a Testo to enter our van giveaway! Offer Valid on the following models, testo 300, 300LL, 310, 327-1, 320B, 340, 550i, 550s, 557s, 557s, 865, 868, 871, 872, 883, 890. Buy a Testo flue gas analyser, digital manifold or thermal imaging...- CorgiDirect
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- electric van worth
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- Forum: Plumbing News
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Electric hot water tank
I installed a new electric hot water tank. They pressure relief valve keeps releasing after 2 hours steamy hot water. Replaced the pressure relief valve and the tank is still doing it. Any advice on what to do?- Michelegrygor
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- Forum: USA
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Advice on Install a new Electric Shower (currently unvented cylinder)
Advice on Install a new Electric Shower for shower cubicle and keep using the unvented cylinder water heater for bathtub I have an Unvented Cylinder Water heater 125 litre (MegaFlo) in an apartment of ( 15 years old) Currently it is not really capable of delivering enough hot water for more... -
A
Will all electric showers work with a combi boiler?
Will all electric showers work with a combi boiler?- Andrea
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- america boiler combi combi boiler electric showers usa work
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Will all electric showers work with a combi boiler.Ash
Will all electric showers work with a combi boiler?- Andrea
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- america combi electric showers usa work
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- Forum: USA
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R
Electric power shower
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- electric power power shower shower
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: What Electric water heater for a 2 bed flat ?
Friend has been notified by their Freeholder that the communal Boiler for heating and H/W will need upgrading at a cost of 80-100K per apartment !! They are going to get many quotes and options themselves as this seems extortion ! Or Each flat can fit their own. But Must be Electric ... -
R
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Hi I’m thinking to replace my electric shower. However my system is a gravity system. With a single tank in the loft and a hot water cylinder in the airing cupboard. If I was to turn off the mains stopcock is that enough for then to replace the shower ? I do not need to drain the tank?- Raqeeb Butt
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- america electric electric shower shower usa
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Mira electric dual head shower - Anyone know if they’re any good?
I have a customer with an existing electric shower ask if they can have a dual head shower with a rainfall head as part of their bathroom upgrade. My initial thoughts were that electric showers aren’t powerful enough and we’d need to investigate what can be done from the gravity fed hot water...- PythonCrazy
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- anyone dual electric head mira shower
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Electric shower
I’m looking to replace my electric shower.however in my loft there is a big tank. If I turn the mains off from outside will that be fine then to remove the existing shower and install a new one?- Raqeeb Butt
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- america electric electric shower shower usa
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FOR SALE Broughton HPW40 36kW Portable Electric Boiler (400V) ( NEVER USED)
Was purchased for a job then client cancelled. Has never been used . Save massive on gas and have the ultimate electric HEATING SYSTEM IN ANY LARGE HOUSE .. also great for underfloor and heating systems …( I’m not a plumber but was told this is the case by a heating engineer, also helps move...- MrmarkG
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- boiler electric electric boiler for sale never never used portable sale
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Electric radiator next to basin?
Been asked to put new childrens basins in a private nursery. This is what I am faced with in the disabled loo. Apparently installed by qualified electrical firm who are saying the zoning regs dont apply to basins........Someone has installed a shelf above it now to "keep the water out"... Common...- Julie Street
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- america basin electric radiator usa
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Advice needed. Converting gravity fed cold supply to mains fed to supply an electric shower?
I want to put in an electric shower in my downstairs cloakroom which currently has a gravity fed cold supply from the tank in the loft. The shower I am looking to install needs a mains fed cold supply which I could do by disconnecting this pipework from the gravity tank and connecting the cold... -
G
Fluctuation in water pressure with electric shower since neighbours extension built
I have an electric shower which worked perfectly until my neighbours built an extension. Since then my water pressure is constantly fluctuating which has caused problems with the shower. The temperature of the water can be perfect initially but will suddenly change and I’ll either be almost...- GerryG
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- Forum: Bathrooms, Showers and Wetrooms
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Gas or Electric route
Hi all, Just looking for some advice on whether to start my gas training or to train as an electrician. As we all know the gas industry is a bit of a mess at the moment, with the government proposing to remove gas from home heating. I've been working as a plumber with property maintenance...- Plumber Luke
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electric water heater boiler change
wondering if you lovely people can advise me the best option. just moved into a 2 bed ground floor flat, electric only. have a big water tank on econ 7 tariff. have to boost for about 4/5 hours to be able to fill a bath, so not the best. would love to get rid of the water tank and get some... -
M
Use electric hot water tank in series with gas boiler
Hi, we are building a new house and we are going to be using central heating and radiators with a gas boiler. We live in a remote rural place and we have to generate our own light. We have set up some solar power and generate more than what our batteries can charge and we can use during the day...- mafulynch
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electric water heater stopped heating
Hello, I live in an apartment where we own a ariston aures slim water heater which is used to heat my bathroom and kitchen sinks (installed before me, I would have used two separate ones instead). After using it for a year with varying degrees of success it's now completely failed on us for...- ehab563utd
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- Forum: Plumbing Jobs | The Job-board
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Should I expect my towel rail (non electric) to be fitted like this
I’ve paid good money for a bathroom installation. This follows on from having an en-suite installed last year. Both involved replacing existing radiators with flexi pipe behind them with towel rails. When my towel rail was fitted in the en suite the plumber fitted with two very short pieces of...- Unhappy
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