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Live wire, neutral & ground (earth wire) - Domestic circuits (part 1) | Physics | Khan Academy

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Live wire, neutral & ground (earth wire) - Domestic circuits (part 1) | Physics | Khan Academy

The live wire of domestic circuits is usually red and is at high voltage. The neutral wire is black and has voltage close to that of the ground. The potential difference between these two wires in India is about 220 V. The earth or ground wire provides safety against faults and current leaks. Earth pin is longer to ensure earth connection happens first while connecting and last while disconnecting any devices.
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Created by Mahesh Shenoy
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Wires | Electricity | Physics | FuseSchool

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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Domestic Electric Circuits | CBSE Class 10 Physics Electricity |Magnetic Effects of Electric Current

Learn Domestic Electric Circuits CBSE Class 10. Physics Master teacher Abhishek Sir enlights on Magnetic Effects of Electric Current: Domestic electric circuits. Important topics discussed in the session are Generators, Mechanical Energy, Electrical Energy, Wires, Mains, Meter, Live Wire, Neutral Wire, Earthing, Power, Current, Overloading, Short Circuit, Fuse, MCB

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Magnetic Effect Of Current | Domestic Electric Circuits Class 10 | Class10 Physics Domestic Electric Circuit | Household Electricity | Domestic Electricity | Domestic Circuits | How An Electric Motor Works | Magnetic Effect Of Electric Current Class 10 | Magnetic Effect Of Electric Current Summary | Magnetic Effect Of Electric Current Questions
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Earth Wire and Its Functions

This video explains through animations how earth wires prevent electrocution. It also shows how earth wires are connected in household appliances. It is suitable for students who have learnt concepts of electricity.
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Overload & short circuit: Domestic circuits (Part 3) | Physics | Khan Academy

Overload happens when current exceeds a safe value. Sometimes this happens due to voltage spikes. Attaching too many devices is also a very common cause. Sometimes there is a short circuit. A short circuit is when a very low resistance path is created, causing enormous amounts of current. For example, when a live wire touches a neutral wire, it creates a short circuit.
Overload protection and short circuit protection can be done by using an electric fuse.
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Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

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Created by Mahesh Shenoy

what is difference between neutral grounding and earthing | neutral vs ground | neutral vs earth

Difference between Neutral and Earth

Very effective way and animation is used in this video to explain the difference between a Neutral and Earth wire. After watching this any one can understand the difference.

Hindi version of this video has already got very popular

What is Ground? Earth Ground/Earthing

What is ground and what does it mean to do Earthing? Here I answer what ground is, how it relates to your wall socket and the wiring in your appliances, how to get grounds for your high voltage and other experiments, and about the ground symbol in electrical schematics.

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For a detailed video on grounding according to the NEC (US National Electrical Code) see Mike Holt's excellent Grounding - Safety Fundamentals (1 hour long)

See also:

Does Volts or Amps Kill You? Voltage, Current and Resistance


Portable Crystal Radio using Loop Antenna and Pizza Box


How to Read a Schematic


The previous version of this video had an error in it that was too big to fix with an annotation, and so it was removed, fixed, enhanced and reuploaded. The error was a silly one on my part where I had the fault go to ground, silly because I should have realized that wasn't what happens since I knew about the ground being connected to the neutral bar in the breaker panel. A big thanks to all who brought it up in the comments to the previous version.

Thanks to Matthias Wandel ( for allowing me to photograph his breaker panel and thanks to Todd Harrison ( for checking over this new version of the video before I released it.

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फेज, न्यूट्रल और अर्थ में अंतर Phase, Neutral And Earthing Wire | Khan GS Research Centre

#phase #neutral #earthing #groundwire #threephasemoter #singlephasemoter #colorofwire #colourcodeofwire #homewirring #differencebetweenphaseandneutral #differencebetweenneutralandearthing #differencebetweenearthandground #PHASEVSNEUTRAL #PHASEVSEARTH #NEUTRALVSEARTH #EARTHVSGROUND


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Domestic electric circuits || घरेलू वायरिंग || Part 1

#domesticwiring
#electricwiring

Domestic electric circuits || घरेलू वायरिंग
#Domesticelectriccircuits
#घरेलूवायरिंग
Domestic electric wiring

Domestic electric circuits || घरेलू वायरिंग

Part 1

Part 2

Part 3

Part 4


Full Video



Stair case wiring

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Series wiring
Parallel wiring
Stair case wiring
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Domestic circuit connection & fuse - Domestic circuit (Part 2) | Physics | Khan Academy

Let's explore how the domestic circuits are connected (whether in series or parallel). Also, let's learn how the fuse helps protect the domestic circuits from voltage surges. This helps us explore why we have two separate circuits, one for low power devices (with 5A fuse) and one for high power devices (with 15 A fuse).

More free lessons & practice

Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help!

Donate here:

Created by Mahesh Shenoy

Use of 'Earth Wire' in domestic circuit

#Earthing
#Grounding
#DomesticElectricCircuit
The video explains why do we need Earth wire in Domestic circuit. What will happen if we touch applainces which do not have earth wire. What will happen if our hands are wet and we touch electric appliances.

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10th SCIENCE PHYSICS Unit4 Short ans part 1 Qn.1,2 potential difference earth wire domestic circuits

10th SCIENCE PHYSICS Unit 4 Short answer part 1 Qn.1,2 ELECTRICITY in tamil
Science 4th lesson
PHYSICS 4 ELECTRICITY

VII. Short answer questions
1. Define electric potential and potential difference.
2. What is the role of the earth wire in domestic circuits?

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Domestic Electric Circuits | Domestic Wiring | Physics |Magnetic Effects of Electric Current

Video in about the #Domesticelectriccircuit and #Electricalsafety and we learn about the #Earthing and basic #Fuse so watch till the end
Let's explore how the domestic circuits are connected (whether in series or parallel). Also, let's learn how the fuse helps protect the domestic circuits from voltage surges. This helps us explore why we have two separate circuits, one for low power devices (with 5A fuse) and one for high power devices (with 15 A fuse).
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Working of a DC Motor(Electric Motor), Fleming's left hand rule

#domestic_wiring #PHysics
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Domestic Electric Circuit,Earth Wire,Live Wire,Neutral Wire,Class 10th Physics,Magnetic Effect of Electric Current,NCERT,CBSE

Class 10 Physics Domestic Electric Circuits - Erudex Learning App

Here is a brief demonstration of Class-10 #Physics lesson that walks students through the concept of #DomesticElectric #Circuits with animated videos.

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An electric circuit is a path in which electrons from a voltage or current source flow. The point where those electrons enter an electrical circuit is called the source of electrons. The point where the electrons leave an electrical circuit is called the return or earth ground.

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GCSE Physics - Fuses and Earthing #22

This video covers:
- What a surge is and how it can cause harm
- How safety features can protect us from that harm
- In particular: fuses, circuit breakers, earth wires and insulation

Class X physics domestic electric circuits live wire neutral wire and earthing wire short circuiting

Class X physics domestic electric circuits live wire neutral wire and earthing wire short circuiting and overloading

EARTHING AND NUTRAL WIRE 1

Live, neutral and earth electrical wires explained (AKIO TV)

In this video, we take a look at the basics of electrical wiring; we explore what live, neutral and earth wires actually do using a scale model.


(AKIO TV) MMXX

Why fuse and switch must be on the live wire?

Both fuse and switch are safety features which must be connected in the live wire. If connected wrongly e.g. on neutral wire, they do not serve their purpose.

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