Wires | Electricity | Physics | FuseSchool
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- čas přidán 28. 05. 2024
- Wires | Electricity | Physics | FuseSchool
A broken wire means two things;
1. It won’t work properly anymore.
2. It’s dangerous and shouldn’t be used.
In this video we’re going to look at wires, the wiring of a plug and why insulation is important.
Wires inside walls carry electricity to electrical sockets and lights in a house.
Whenever you plug in an appliance, you’re connecting it to an electrical circuit.
A appliance is anything that transfers energy from one form to another.
Different countries have different plugs, for connecting devices to the mains.
Each of the pins in the plug is connected to a different type of wire. We’re going to look at a 3 pin plug with 3 wires, but 2 pins are pretty much the same.
If we look inside a plug we can see the different wires.
The brown live wire
The blue neutral
And the green and yellow earth.
The brown live wire and the blue neutral wire carry the current around the circuit.
The live wire is the route into the plug for the electric current. The current is alternating current, which travels back and forth approximately 50 times a second.
The neutral wire completes the circuit. It is the route the electric current takes when it exits an appliance. Neutral wires have a voltage close to zero.
The green and yellow earth wire is a safety wire. Many electrical appliances have metal casings.
If a loose wire touches the metal casing, anyone who touches the appliance would get an electrical shock. Which is where the earth wire comes in. The earth wire connects to the earth pin, which takes the current away from the appliance into the wiring of your house and down to the earth through the house’s earthing system. So the current runs through the earth wire, rather than running through you if you touch the appliance. Much safer!
The earth pin on a plug is longer than the live and neutral pins. Therefore whenever you plug in a plug, the earth pin always connects with the socket first. Providing you with that earthing safety.
The fuse is a very thin wire between the live terminal and the live pin. It has a very low melting point, so if a too large current flows through the fuse, then the wire heats up and melts. Thus breaking the circuit. Which is why you might hear the phrase “the fuse has blown”. If there is a gap in the circuit, electricity cannot flow and so the device will not work, but the user is safe.
The main role of a fuse is to prevent fires starting, due to too large currents.
Another safety feature is the outer insulation of wires attached to plugs.
Plastic is an electrical insulator meaning electricity cannot travel through it. If electrical wires are surrounded by a plastic casing, then they are safe to touch. If there is a break in the plastic or it is damaged, you could come into contact with the wire inside and have an electrical shock. So do yourself a favour, if your phone charger looks like this, get yourself a new one!
Different countries have slightly different colour combinations for these wires, but they’re pretty much the same.
There’s a really easy way to remember where each wire goes…
Take the 2nd letters of the colours
BLue L Left
BRown R Right
STriped T Top
So there we have our current carrying live and neutral wires, and our protective earth wire and fire stopping fuses.
CREDITS
Animation & Design: Reshenda Wakefield
Narration: Dale Bennett
Script: Bethan Parry
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Where i learn:
School 10%
CZcams 90%
School doesn't teach you anything, school is only for jobs and shit.
@@user-cv3dr4kt7j one more point...School only tests your memory and teaches stupid theories. Life teaches and tests knowledge.
QuackyNotFound ye, my teacher literally gave this video instead of ACTUALLY teaching us.
@@murdock7943 dude same
@@user-cv3dr4kt7j I agree with you a lot
There's also a simple way to remember that brown is the live in the UK, because that's the colour your pants are going to turn if you ever dare touch one...
A boy in my class said this, lmfao I wonder if he watched this video and saw your comment
The concept of electricity was established before the discovery of electrons. So, it was believed that the passage of current is due to the flow of positive charges. This is what we call the conventional flow of current, i.e. in the direction of flow of positive charges. After the discovery of electrons, it was observed that the electron are the particles that flow in a conductor. Electrons being negatively charged flow from the negative terminal to the positive terminal of the voltage source. So, the actual direction of current should be from negative to positive terminal. However, the conventional direction had already been established firmly in scientific fraternity. So, the current flow is considered in the direction opposite to the direction of flow of electrons.
I was so confused about the lesson yesterday, but you guys saved me 2 whole hours!
Glad to hear that!
Thank you fuse school.With your help I scored an A in my science assignment
That is awesome! Well done.
Is the direction of the electrical flow wrong in live and neutral at the start? The live current flows into the plug but the arrow direction at 1:25 is showing the current in the brown leaving through the plug, through the fuse and back into the wall. Very confusing
I don’t get it
How does the neutral wire flow current out of the appliance when your showing an arrow of current flowing to the appliance
And how is the live wire used for electric current to go INTO the plug -doesn’t the live wire have 230 volts and moves it out of the plug
Sorry just abit confused great video though
Well explained... I really appreciate it. Thanks a million 🌹
Glad it was helpful!
Very good explanation by this teacher❤️. Awesome video about the electricity.
Thank you! Glad you liked it!
I'm so glad I found your channel!
Welcome!!
who isnt gald they found this channel? God knows how many lives this one video has saved
Simple and lucid articulation. Thank you
Most welcome!
Thank you truly frm my heart ❤️ and please continue making these videos you are really helping people's lives
Thank you for the kind words! Always happy to help 💜
Wow! Really good quality nice video... Keep up the amazing content!
Thank you! Will do!
Really well explained
He explain very good ..... i cleared mine doubt thanku soo much 👌👌👌
Most welcome 😊
Ohh my god !!! Thankyou so much you explained it very easily. Thankyou sooo much
Most welcome 😊
Thank you. Well explained
You are welcome! Glad you liked it!
Excellent video! This was very helpful for my son who is in 7th grade! Keep going!
Thank you! Will do!
Thanks❤️ great animation make it easy to understand.
Awesome! Glad to hear that!
Wow this simple and great.
How can a neutral wire connect the live wire through the electrical appliance?
what does 'mains' mean? and what happens if you connect a kettle to the mains and switch it on?
Thanks a lot. It was a very helpful video
Glad it was helpful!
Thank you this helps a lot!
No worries! Happy to help!
Thanks. Since the blue wires 0 volts does this mean you cannot get electricuted by touching only the blue wire?
If the neutral wire is properly earthed, you are right, you cannot get a shock from it. This is why you must be careful when wiring a house that all the switches are on the live side of the load - here the voltage changes 50 times a second from +240 to -240 volts - very dangerous to touch (unless you are suspended and highly insulated from the ground! For example birds can perch on high tension cables as long as they are careful not to be near a second cable.)
why does neutral wire have voltage close to 0 although it carries the same current as the live?
So helpful!!! Thank you for this!
Glad it was helpful!
Hi! Why Earth wire is longer than the onther two in a plug of a cable used for charging electric vehicle?
Hi, that is because, in case you pull the plug out of the socket by pulling the insulated wire (total: earth live and neutral), the first wire that detaches from the plug will be live, then neutral, atlast is only the earth wire, ensuring your safety, that's why live and neutral wires are short and can detach faster than earth wire
Does the wiring work the same (live, neutral and earth) in both DC and AC? Thanks!
No, DC (Direct Current) is much more simple.
what if you stuck a fork on the live wire would it hurt you or nt
Thank you sir x
No worries!
Can u show the direction of the current since it is changing
This is vrey usefull for me tnks yu
Glad to hear that!
Thank you very very much.
You are very welcome! 🤗
Thankyou it was really helpful
Glad it helped!
Nice vid man
Thanks
No problem 👍
Well done
Thank you!
Thanks I've just connected some wiring on a plug
Why
Very helpful thanks
Glad it helped!
FuseSchool - Global Education only took you 9 months
At 1.26, when you're displaying current direction, is it correct? Live wire is the one which carries current from source to your appliance. And the image is of appliance socket plug. So, technically your plug and wire of appliance should receive live current as incoming. Direction should be from socket plug to wired appliance.
Alternating current alternates direction. In anyway the direction of the current is just a convention and actually is wrong, thanks Franklin.
The difference between live and neutral is that neutral is grounded and so it is on the earth potential and live has voltage referenced to earth. This is not relevant to the working of the equipment. All the equipment cares is that there is a voltage between the wires. UK shaver sockes are isolated and not referenced to the earth and yet they work.
I also have same doubt 🙄
@@rajkiran676 me too
It was really helpful
Glad it was!
Such a nice video it helped me so much
Glad it helped!
Thank you sir your video is so good
Thank you!
I just ❤️❤️❤️ this channell!!!!
🤗💜
@@fuseschool
Thank you so much for replying and I had a question, can I ask my doubts whenever required in the comment section because u r informative?
You can definitely leave your question in the comment section, and if we don't reply, there is a high chance that someone else watching the video will!
A broken wire means two things;
1. It won’t work properly anymore.
2. It’s dangerous and shouldn’t be used.
In this video we’re going to look at wires, the wiring of a plug and why insulation is important.
Wires inside walls carry electricity to electrical sockets and lights in a house.
Whenever you plug in an appliance, you’re connecting it to an electrical circuit.
A appliance is anything that transfers energy from one form to another.
Different countries have different plugs, for connecting devices to the mains.
Each of the pins in the plug is connected to a different type of wire. We’re going to look at a 3 pin plug with 3 wires, but 2 pins are pretty much the same.
If we look inside a plug we can see the different wires.
The brown live wire
The blue neutral
And the green and yellow earth.
The brown live wire and the blue neutral wire carry the current around the circuit.
The live wire is the route into the plug for the electric current. The current is alternating current, which travels back and forth approximately 50 times a second.
The neutral wire completes the circuit. It is the route the electric current takes when it exits an appliance. Neutral wires have a voltage close to zero.
The green and yellow earth wire is a safety wire. Many electrical appliances have metal casings.
If a loose wire touches the metal casing, anyone who touches the appliance would get an electrical shock. Which is where the earth wire comes in. The earth wire connects to the earth pin, which takes the current away from the appliance into the wiring of your house and down to the earth through the house’s earthing system. So the current runs through the earth wire, rather than running through you if you touch the appliance. Much safer!
The earth pin on a plug is longer than the live and neutral pins. Therefore whenever you plug in a plug, the earth pin always connects with the socket first. Providing you with that earthing safety.
The fuse is a very thin wire between the live terminal and the live pin. It has a very low melting point, so if a too large current flows through the fuse, then the wire heats up and melts. Thus breaking the circuit. Which is why you might hear the phrase “the fuse has blown”. If there is a gap in the circuit, electricity cannot flow and so the device will not work, but the user is safe.
The main role of a fuse is to prevent fires starting, due to too large currents.
Another safety feature is the outer insulation of wires attached to plugs.
Plastic is an electrical insulator meaning electricity cannot travel through it. If electrical wires are surrounded by a plastic casing, then they are safe to touch. If there is a break in the plastic or it is damaged, you could come into contact with the wire inside and have an electrical shock. So do yourself a favour, if your phone charger looks like this, get yourself a new one!
Different countries have slightly different colour combinations for these wires, but they’re pretty much the same.
There’s a really easy way to remember where each wire goes…
Take the 2nd letters of the colours
BLue L Left
BRown R Right
STriped T Top
So there we have our current carrying live and neutral wires, and our protective earth wire and fire stopping fuses.
Zakie Chan wow
You should deserve more likes
This is literally my homework thankkksssss
Plz answer , when i connect multimeter to ground and live in my home i got 240 volt why , as u said the electricity must be between neutral and live
It's because the multimeter measures the difference in Voltage between two points
If the live is at 240 (or 120 where I live) and the ground at 0 the device will display the potential difference/voltage while one might think their ground is shorted to live it's not since the difference/voltage between them would be zero if they were both at 240 V
Of course you got. Had you hit gotten you would have a serious problem. There is voltage between live and earth but there normally is no current as there is no connection. A failure might establish a connection. Then the current likely would be so hight that it trips the breaker.
thank you so much!!
No worries!
Thank you!
No worries
Thanks for providing this vedio
Any time!
I do like how this video is based on British wiring rather than American wiring.
my brother was charging his phone until the wire burned
Love the video.
So glad!
Thank you
No problem!
nice
Why does an appliance become live when neutral and live wires are swapped
I'm no expert on the topic and I'm a few months late but i think it's because most appliances will work just in the opposite direction so some appliances like consoles or screens may not work but kettles, chargers, toaster or whatever else you're using can run the opposite direction as well. Still don't do it though it's probably unsafe.
you said current flows through live wire and comes out through neutral wire, ac source has changing polarity isn't?? so if polarity changes in negative half cycle, then current should flow through neutral wire and comes out of live wire isn't?? explain me this set up please...
You are (sort of) right. The neutral wire is actually earthed, so the AC voltage of the live wire alternates + and - so electrons flow from earth (the neutral wire) and to earth alternately.
What a great video. Thanks!
Glad you liked it!
I thank you so much!
No problem 😊
Hello sir +2 fast year ka v batao plz
What type of wire is this?
high quality
Thanks!
I found your channel...couldn't be more glad :)
Glad you found us! Welcome!
Thnx helped
No problem!
You know that the 5v that a phone charger isn't dangerous ?
And also your outro cuts before the end
Thanx
👍
Nice
Very nice
that was best video!
Glad you think so! 😃
live - red
neutral - black
EARTH - green
Good video
No bad
👍
😊
Striped is the most important.
Thanks I've just fixed my wifi's cut wires..
Wait- no I watched this video AFTER.. well, whatever I liked the vid anyways.
Haha glad you liked it!
It nice
Bello
But actually in AC curent there is in every second the electricity change its flow of direction
It does it every 2 ms
From This Video I got 100 fro quiz tysm
Amazing! Well done!
Great video
Thanks!
Why you showing direction of electron in opposite direction 🙄. Appliance receive electron from live wire right?
interhigh 2020
From these*
No comments?
Nice animation... How it is made?
We use After Effects to make videos.
@@fuseschool
Thanks for the information
Who all are watching from India
Good
Thanks
Hey
Hi!
Nice
Very nice