You could have a short or it could just be that you are reading through a load. Take a lamp and check for continuity at the plug, with a bulb in the lamp you will get continuity, take the bulb out if you still have continuity then you have a short in the wire or the lamp. Same thing happens in the wiring of your house on a larger scale.
If the electrical box is grounded, check with a tester, the "hot" wire will have a voltage to the the grounded box the neutral wire will not. If the box is not grounded, with the breaker supplying the voltage turned off, use a tester on the resistance scale to check for continuity between the wires and a cold water pipe or some other grounded medium. The neutral will have continuity between the wire and a ground the "hot" wire will not.
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.
In electrical wiring, the live or "hot" wire is typically brown or red, the neutral wire is typically blue or black, and the ground wire is yellow or green. So, in this case, the brown wire is likely the hot wire, the blue wire is the neutral wire, and the yellow green wire is the ground wire.
How do you determine what? If you are asking how do you measure the voltage between Hot and Neutral, I suggest a voltmeter. If you are asking how do you differentiate between Hot and Neutral in home wiring, the Hot is Black and Neutral is White.
The live wire carries current from the electrical source to the device, while the neutral wire completes the circuit by returning the current back to the source. If the live and neutral wires were joined together, it would create a short circuit, potentially leading to overheating, electrical fires, or damage to the electrical system.
If the electrical box is grounded, check with a tester, the "hot" wire will have a voltage to the the grounded box the neutral wire will not. If the box is not grounded, with the breaker supplying the voltage turned off, use a tester on the resistance scale to check for continuity between the wires and a cold water pipe or some other grounded medium. The neutral will have continuity between the wire and a ground the "hot" wire will not.
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.
Typical home wiring will have one hot wire, one neutral wire, and one ground wire per circuit. An open neutral would indicate that the neutral wire, usually white wire, is broken.
In an electrical circuit, the white wire is typically used as the neutral wire, not the hot wire.
If wired properly the ridged wire is the neutral.
In electrical wiring, the live or "hot" wire is typically brown or red, the neutral wire is typically blue or black, and the ground wire is yellow or green. So, in this case, the brown wire is likely the hot wire, the blue wire is the neutral wire, and the yellow green wire is the ground wire.
If this is a home wiring question and the wires are black and white then black is Hot and white is Neutral. If you also have a red wire, it is the other hot wire, and either the black or the red wire to the white one would be 120 volts, and red to black would be 240 volts.
The black wire is typically hot, while the white wire is neutral.
How do you determine what? If you are asking how do you measure the voltage between Hot and Neutral, I suggest a voltmeter. If you are asking how do you differentiate between Hot and Neutral in home wiring, the Hot is Black and Neutral is White.
If a "hot" wire contacts the "neutral" or ground wire, electrical current flows to the ground.
In an electrical circuit, the white wire is typically designated as the neutral wire.
In an electrical circuit, the black wire is typically the hot wire.