Just one! You'd never believe it but you only need one wire in a curcuit. unless things are stopping it then you need more. it depends on what materials you are using. my physics teacher always told me that the clips on the end of the wire are crocodiles and if i didnt do my experiments properly, i would be eaten alive :) i was the best student in the class after that experience.
Basically two, the live and the return (neutral). It's good also to have an earth (ground) for safety.
0? Bit of a philosophical point. With 1 you have a simple but rather boring series circuit.
Circuitry wire size is based on the amount of amps that the circuit is to draw. The higher the amperage the larger the wire size has to be.
A straight 220V circuit utilizes two wires per circuit.
Current needs only one wire to flow in, but a circuit needs at least two wires to connect the source to the load.
When a switch is open (wires not connected) it is considered off. When a switch is closed it is considered on. If you move a switch and the wires are not connected the the circuit is open and current cannot run throughout the circuit to power the device.
In a shorted circuit, the temperature of the wires increases. This is because the wires are not perfect conductors - they have resistance - so the large fault current that flows generates a voltage across the wires, which then generates power, generating heat.
The code says one wire per one terminal.
A straight 220V circuit utilizes two wires per circuit.
It depends! IDIOT
Three wires carry the three phase energy.
If they are on the same circuit you only need 1 neutral wire in the circuit.
They are the wires through which current flows when the circuit is closed.
Neutral wires are actually ground wires. They enable the circuit to be completed.
A break in the wires of an electric current will break or cut the circuit and stop the current from flowing.
A circuit without any nonconducting wires
well ummm...... the circuit has metal in it to carry on the wires!
Current needs only one wire to flow in, but a circuit needs at least two wires to connect the source to the load.
The wires carrying the power.
When a switch is open (wires not connected) it is considered off. When a switch is closed it is considered on. If you move a switch and the wires are not connected the the circuit is open and current cannot run throughout the circuit to power the device.