The live wire touches the earth wire. How many of these five events cause the fuse in the plug to blow? A 1 B 2 C 3 D 4 Solutions: Option B Consider the five events: A person touches the earth wire — As the person is at 0V, same as the earth wire, there will be no current flowing through the person.
So current through the circuit will not be affected, which is lower than the 3A fuse rating. Fuse will not blow. The person will get an electric shock. But a common misconception is that if a person gets an electric shock, the current flowing through him is very large, which is wrong.
In fact, the current is very small, much smaller than the fuse rating. Hence the fuse will not blow. The fuse will blow. Share this: Twitter Facebook. Like this: Like Loading Does current flow through the neutral wire?
Normal circuit currents flow only in the neutral, and the protective earth conductor bonds all equipment cases to earth to intercept any leakage current due to insulation failure.
The neutral conductor is connected to earth ground at the point of supply, and equipment cases are connected to the neutral.
What happens when a neutral wire is disconnected? If the neutral for that branch is disconnected then the circuit is not complete and no current can flow. This is not always the case though. In a MWBC a shared neutral is used for two circuits of opposite phases. Why would a neutral wire be live? Since the neutral wire is a potential between all three phases, each phase along with the neutral wire can form an independent circuit e.
It is the role of the neutral wire to carry any current as a result of the imbalance in impedance of each of the phases loads. What is the role of neutral wire? The neutral wire is often confused with ground wire, but in reality, they serve two distinct purposes.
Neutral wires carry currents back to power source to better control and regulate voltage. Its overall purpose is to serve as a path to return energy. What happens if you connect black wire to white wire? Inside an outlet's electrical box, the black hot wire should be connected to the brass-colored terminal on the outlet. The white neutral wire should be connected to the silver-colored terminal.
If these connections are backward, the polarity is wrong. The live wire oscillates between V to V and the neutral wire always stays 0V. Sign up to join this community. The best answers are voted up and rise to the top. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Learn more. Difference between live and neutral wires Ask Question.
Asked 6 years, 1 month ago. Active 1 year, 4 months ago. Viewed k times. Improve this question. Add a comment. Active Oldest Votes. Improve this answer. Chemist 5 5 silver badges 15 15 bronze badges. Guill Guill 2, 11 11 silver badges 6 6 bronze badges. The general idea is that live supplies the voltage and neutral is the return wire. Ground being the abnormal one connected to the device shell.
See this page: epanorama. For this reason all Belgian fuseboards whether actual fuses orcircuit breakers protect both current carrying wires irrespective of supply type.
The Life wire has a voltage V effective, in EU whereas the neutral is zero volts, at least in theory unbalanced circuits could see some voltage on neutral, but that's undesired Does that not mean that both the live and neutral wires carry the same amount of current, alternatively?
Nothing else. SchrodingersCat SchrodingersCat 4, 3 3 gold badges 19 19 silver badges 45 45 bronze badges. Regarding their role in "transport of electricity", they are completely identical.
The generators make typically several kilovolts. You do not wish to connect your home appliances to the generator. Also the notion of alternate current going always from the source to the load is, at least, confusing. Vinayak Vinayak 2 2 gold badges 11 11 silver badges 25 25 bronze badges. Slight differences in load reactance can result in the three phases being slightly off and not perfectly adding up to zero.
This can lead to residual AC current flowing through neutral. In a well balanced connection the residual may only be millivolts. Nick 1, 12 12 silver badges 25 25 bronze badges. Featured on Meta. Now live: A fully responsive profile.
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