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What would happen to a circuit re energised without a neutral connected?
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Why are the live wire and neutral wire never joined together?
An electrical circuit forms a loop. The "live" or hot wire supplies the voltage, which is returned on the neutral. If the hot wire and neutral wire were connected together without a load between them, the circuit would be short out and trip the circuit's protection device.
When a device is removed from an outlet box which wire must be connected in such a way that it maintains continuity?
All three wires, the "hot", neutral and the ground must all maintain the integrity of the circuit. This is why pigtails are connected from the main circuitry to the receptacle or switch devices so that they can be removed without opening the electrical circuit.
Is there an advantage of having a neutral wire in an unbalanced electrical system?
A neutral wire is essential in a three-phase star (or wye) connected system supplying an unbalanced three-phase load. Without a neutral, the voltage across each of the loads may become unbalanced, too.
Which wire on an ac cable Is the neutral the one with or without writing?
On a lamp cord or two wire extension cord the writing is on the neutral side. Double check this by tracing the wire down to the cord end. You should find the neutral wire connected to the wider blade, of the two blades, of the plug cap
What is two wire to four wire conversion?
There is no such thing. Two wires cannot generally be connected to four without additional information and possibly additional circuit protection.
Why are the live wire and neutral wire never joined together?
An electrical circuit forms a loop. The "live" or hot wire supplies the voltage, which is returned on the neutral. If the hot wire and neutral wire were connected together without a load between them, the circuit would be short out and trip the circuit's protection device.
When a device is removed from an outlet box which wire must be connected in such a way that it maintains continuity?
All three wires, the "hot", neutral and the ground must all maintain the integrity of the circuit. This is why pigtails are connected from the main circuitry to the receptacle or switch devices so that they can be removed without opening the electrical circuit.
What is the name of a series circuit?
An electric circuit connected so that current passes through each circuit element in turn without branching.
Can the car run without the negative terminal connected?
The negative teminal needs to be connected to complete the electrical circuit. Without that none of the electronics in the vehicle will work, including the starter.
What is it called when Appliances without plugs or are connected directly to a circuit are said to be?
That is called Hard wired
How can the flow of electrons in an electrical circuit change without the neutral becoming hot ex. AC Power?
The neutral conductor is bonded to ground, and is therefore always at earth potential, which is the zero-reference for voltage.
Can current flow in a circuit without potential difference?
A current cannot exist without voltage but voltage can exist without current.Simple example is battery. A battery has votlage even though it is not connected elsewhere.
Is there an advantage of having a neutral wire in an unbalanced electrical system?
A neutral wire is essential in a three-phase star (or wye) connected system supplying an unbalanced three-phase load. Without a neutral, the voltage across each of the loads may become unbalanced, too.
Why switch is always connected in the phase?
Switches are used to isolate the supply voltage from the connected load. This isolation is needed to be able to work on equipment in the de-energized state. Without the switch in the circuit this could not be accomplished.
Is there any harm in electronics machine without neutral wire or only connected with phase?
Yes. Connect it poperly or not at all. If in the slightest doubt, call an electrican.
Can a graph have an Euler circuit but not a Hamiltonian circuit?
Yes. An example: _____A---------B________ A connected directly to B and D by one path. _____|_______/|\________ B connected directly to A and E by one path, and to C by two paths. _____|______/_|_\_______ _____|_____/___\_|______ _____|__E/_____\|______ E connected directly to B and D by one path. _____|____\_____C______ C connected directly to B and D by two paths. _____|_____\____|\_____ _____|______\___|__\___ _____|_______\__|__/___ _____|________\_|_/____ _____|_________\|/_____ _____-------------D_____ D connected directly to A and E by one path, and to C by two paths. There is an Euler circuit: ABCDEBCDA But a Hamiltonian circuit is impossible: as part of a circuit A can only be reached by the path BAD, but once BAD has been traversed it is impossible to get to both C and E without returning to B or D first. However there is a Hamiltonian Path: ABCDE.
Will an arc fault breaker work without a ground?
Yes a GFCI will work without a ground wire. A GFCI looks for a current differential between current in on the "hot" wire and current return on the neutral wire. Since current is the same throughout the circuit, no difference, no trip. If the load grounds out or shorts out, the current then takes the path of least resistance through the ground and not the neutral. This creates a difference between the "hot" and return neutral current and the device trips the circuit open.
