this is more of a chemistry question.
Pure water, does not conduct electricity. But when you add salt, it separates into positive and negative ions. These are free to move about the liquid, and so there are mobile charges. mobile charges are required to conduct electric current, and so this is how water can conduct electricity.
A short circuit occurs when a low-resistance path is created between two points in a circuit, causing excessive current flow. This can happen due to a wire touching another wire, a conductor coming into contact with metal objects, or a component failure. When a short circuit occurs, it can potentially lead to overheating, damage to components, and even fire.
passing electricity through it by connecting t between the poles of a battery to make a circuit,in this case a short circuit.
A "hot" positive wire has made contact with ground = short circuit.
Short in the circuit or the circuit was overloaded.
The circuit stops working because of the short circuit
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.
Presumably, the current follows a path (a circuit) to do whatever it was "made" to do. If water, for instance, enters the circuit, a shorter path may develop, and the current will (partially) take the short circuit. Or a wire could become lose and short circuit the intended path.
A short circuit is repaired by first finding out where the short circuit occurred. On major faults usually the wires are removed and new wires are installed. On minor faults, the wire that shorted is separated from the offending wire or separated from the grounding medium. To put the conductor back into service the wire's insulation has to be brought back to the level of what the wire was when it was new. Once that is done the circuit can be re-energized.
Wires are insulated to stop a short circuiting between the common neutral wire and the wire that supplies the potential voltage to the load of the circuit.
The wire that connects the power source to the rest of the circuit should contain the fuse. This is typically the wire that leads directly from the positive terminal of the battery or power source. Placing the fuse in this wire helps protect the circuit in case of a short circuit or overload.
No. Each circuit has to have its own dedicated circuit. The breaker and wire size differ between the two appliances.
A fuse is typically connected to the live wire in a circuit. This is done to protect the circuit from an overload or short circuit, as the fuse will blow or trip and cut off the current flow if there is an issue.