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You must have at least two wires in a circuit because a complete path is required for current to flow. It's much easier to understand if you think of electrons as drops of water. Voltage would be like the size of the pipe, and current would be the amount of water moving past a single point in the pipe, and resistance would be like anything in the pipe that restricts flow of the water like a turbine or an orifice. In this case, a single wire going to a load like a light bulb would be the equivalent of water on one side of a dam. If you don't let the water out of the other end, you just get a lake and the turbines won't turn. So, in order for there to be current flow you need a return path (a second wire). Hopefully this answers your question.
Your friendly neighborhood nuclear engineer.
Wiki User
∙ 12y ago
Wiki User
∙ 9y agoElectricity needs a conduit to carry it. A route or roadway if you will. A conductor provides this means. It allows electricity to flow freely along it. Silver is the best conductor though expensive. Copper is a less expensive alternative.
Wiki User
∙ 10y agoBecaus for current to flow there has to be a conductor. No conductor, no circuit.
Wiki User
∙ 7y agoWire carries the electrical energy from one part to another
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Can a dryer outlet be converted to 2 separate circuits?
If you are no longer using the dryer and there are 4-wires, and the dryer was 220 to 240 volts, it can be split into two 110 to 120 Volt circuits.
Why electric wires are covered with insulator?
If electric wires weren't covered with insulation, there would be short circuits.
Can two circuit share the same common and ground wires?
US NEC: The only place two circuits can share the same neutral (common) and ground wires is at the distribution panel, and that is only because those two conductors are tied together at the distribution panel.
What is a load side of the panel?
It is where the black wires are connected for branch circuits.
What polarities red wires and black wires indicates in case of dc measurement?
In typical DC circuits, Red = Positive, Black = Negative.
How do you combine two or more circuits to achieve greater amperage ie. combine two 20 amp circuits to achieve a 40 amp circuit?
If you mean "combining circuits" as in connecting two or more circuits in parallel, this is only allowed by the National Electrical Code when the wires are at least size 1/0 (about 150 amps) You are not allowed to parallel conductors smaller than 1/0 If you meant something else, you need to clarify the question
What are the type of circuits used in wiring installation?
The two main types are series and parallel circuits. From these two circuits comes combinations of different series parallel circuits depending on what end results you need.
Can a dryer outlet be converted to 2 separate circuits?
If you are no longer using the dryer and there are 4-wires, and the dryer was 220 to 240 volts, it can be split into two 110 to 120 Volt circuits.
How do you wire two lighting circuits through a time clock?
If you mean two separate circuits from different breakers, you will need a 2-pole time clock. The circuits will need to be kept completely separate, including neutrals. Remember that a time clock is just a switch operated by a timer and you only switch the hot wires. The clock will be operated by one of the circuits. For this you will need the neutral of that circuit connected to the neutral contact of the clock. This is all rather simple if you can follow the wiring diagram provided with the clock. I doubt you can find a 2-pole clock at the local hardware or home improvement store. You may have to go to an electrical supplier. I say this is simple and for an electrician it is. If you get the clock you need and it doesn't make sense to you in a minute or two you should not attempt to do this yourself. Crossing the hot wires or connecting the wrong neutrals to each other can create very unsafe conditions.
Why you need electronic?
We need to use electric circuits so as to make the transfer of electricity easier. you must have seen various paths made in the circuits, these path controls and regulates the flow of current . But if we don't use electronic circuits then we will have to use wires which is very difficult to handle when we have to do large no. of operations li in computer.
Why electric wires are covered with insulator?
If electric wires weren't covered with insulation, there would be short circuits.
The points where circuits interconnect with other circuits is known as what?
The point where wires interconnect with other wires is known as a "junction". In your panel the circuit breakers are connected to the buss, each circuit breaker feeds a different circuit. Different circuits are not connected together.
Can two circuit share the same common and ground wires?
US NEC: The only place two circuits can share the same neutral (common) and ground wires is at the distribution panel, and that is only because those two conductors are tied together at the distribution panel.
How are circuits made?
circuits are made by connecting wires to an electrical resource and the electricity travels through and powers your electric device.
How do you make a cheap physics working model on electric circuits?
take a battery or cell,two wires, a small bulb.connect the wires with cell,one on positive terminal and second on negative terminal and other sides of wires with the bulb.the bulb will glow
Why are the wires twisted on your pickup?
Twisting wires is done the prevent electromagnetic interference between the circuits(known as noise).
What are the Computer wires and cables and circuits called?
The wires and cables in a computer are often, collectively called "innards" or "guts."
