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You must need 2 wires between a house and the electric power plant because one wire cannot hold that much power. If there is 1 wire the wire might burst. The burst can hurt anyone around there.
AnswerIt's far more complicated than simply 'two wires between the power plant and a house'! So let's stick to the final part of the connection -i.e. between the distribution transformer and a house!
In Europe, there are indeed two wires between the distribution transformer and a house. These are called the 'line conductor' (the 'hot' conductor) and the 'neutral conductor'. The neutral conductor is connected to the earth (ground), while the line conductor has a potential of 230 V with respect to the neutral conductor; in simple terms, the current then passes along the line conductor and back along the neutral conductor. All appliances in European houses are rated at 230 V.
In North America, there are, in fact, three wires between the distribution transformer and the house. One of these is the earthed (grounded) 'neutral conductor', while the other two are the 'line conductors' (the 'hot' conductors). The potential difference between the two line conductors is 240 V, while the potential difference between either line conductor and the neutral conductor is 120 V. Again, in simple terms, currents pass along the line conductors and back along the neutral conductor. In North America, most appliances are rated at 120 V so are connected between a line conductor and the neutral conductor, but some 'high power' appliances (like stoves, etc.) are rated at 240 V and must be connected between the two line conductors.
What else can I help you with?
When was the first electric power plant invented?
1921 in Wisconsin it was a coal fueled power plant
What opened the worlds first electric power plant?
Edison
Where was the first hydro electric plant built?
Nikola Tesla and George Westinghouse built the first hydro-electric power plant in 1895 in Niagara Falls and started the electrification of the world.
Show picture of hydroelectric power plant in a diagarm form?
HYdroelectric power is pretty cool and here is a diagram:
What is the Definition of conventional power plant?
A conventional power plant is usually either a gas or coal fired plant. I can, on occasion, include nuclear power plants but it depends on context. It will never, however, include 'green' power plants such as hydro-electric dams, tidal barriers, wind farms, etc.
What is a diesel-electric power plant?
A diesel electric power plant is an engine that powers electric motors. The motors actually operate the machinery such as a locomotive.
What is the meaning of hydro energy power plant?
hydro electric power plant
From where does this Maine get its electric power?
Power house
What is the electric power station in Pokemon gold?
the power plant
What is the abundant energy source in Switzerland?
The hydro-electric power plant/water power plant
When was the first electric power plant invented?
1921 in Wisconsin it was a coal fueled power plant
What is the plant name which produce electric power from water?
hydroelectricity plant
What is a power plant?
A power station (also referred to as a generating station, power plant, powerhouse or generating plant) is an industrial facility for the generation of electric power.
When was Adams Power Plant Transformer House created?
Adams Power Plant Transformer House was created in 1895.
First electric power plant to transport electricity over 200 miles?
Niagra Falls power plant
What is electric current from a generating plant called?
Electric current from a generating plant is typically referred to as electricity or power. It is the flow of electric charge through a conductor, such as wires, that can be utilized to power various devices and systems.
What is the power house of plant?
Mitochondria
