I 100% agree!! I nearly skipped but he caught my attention with his beautiful handwriting and then I was hooked and now have an understanding of how short circuit works! Thank you
This is by far the best video I’ve come across explaining these things. Very easy to understand for people like me who know nothing about this & also great for people who know a bit already. I love the diagrams ect as you go, absolutely outstanding. Thank you!!!!
Overload is when excessive amount of current is drawn by our device which is out of the capacity of our device due to which insulation cover broke which can even cause shock to the user and may also cause fire. Overload happens Due to high strike in voltage Too much current Short circuit Too many devices are connected Or some faulty devices are connected Short circuit happens when live and neutral wire stick together due to brokage of insulation cover and a large flow of current happens is known as Short circuit Fuse protects our device from shortcircuiting and overloading
1.Overload occurs when the current drawn by the wire is more than that of its capacity.it causes fires 2. When voltage increases, thunderstorm etc. 3.Shot circuit is when current travels along an unintended path of low resistance. Happens when insulation of live and neutral wires break 4.Safety fuse and circuit breaker
Answers to the question: 1. Too much current flowing in the circuit. It is bad because it can cause insulation to melt and can also cause fire. 2. The three ways by which overload can happen: (i) Too much of voltage in the current (ii) Too many devices connected to the circuit (iii) short-circuit 3. Short-circuit happens when the current in a circuit happens to take a shorter and a lesser resistant path. e.g., (i) when a live wire touches a neutral wire (ii) when the circuit is surrounded by water (Extra {what it can cause}: short circuit can allow a huge amount of current to flow though it, as there is much lesser resist and can use burns or melts in the devices.) 4. Insulation protects the circuit. Feel free to correct me if I'm wrong.
I once connected the live wire and the neutral wire by connecting an external wire between the live socket and neutral socket on switch board and power went out. I was really dumb to do that. Realised now that I actually did a short circuit.
.......I am just figuring this out more in writing, from what you said and my electrical experiences...... Hmm, to much electrical current on the wire, can heat it up, but the fuse or breaker stops this, by stopping the flow of electricity..... To many devices would draw maximum electricity for the wire fuse or breaker, and electricity would stop when the fuse or breaker shuts off......The short circuit would place to much electricity directly on the wire, and/or indirectly interfere with other aspects of a device, and cause the fuse or breaker to put the brakes on and trip off the flow of electricity....
It depends on electrical appliances... For example if you use electric iron which drawn 15amp current then we will use 15 amp of fuse.... Fuse depends on electrical applianxes
Hey Rohit, Resistance is taken as 0 but it's not really 0. To be precise, it is so low that it is negligible. If you have an extremely large current, then heat will also be extremely large. And since we are talking about parallel connections, the formula we use will be H=V²t/r[because V is constant in parallel connections]. You can see that the heat produced will be extremely large. Hope that helped.
Answer 1, An overload is an increase current due to voltage (current is directly proportional to voltage) with low resistance causing the wire to overheat, giving a class C electrical fire, which is why its bad. Answer 2, Either there was a voltage spike in the AC or too much electrical device draws current. Answer 3, Is an interruption in the circuit by another conductor with even lower resistance compare to other loads, that can completes a quicker path back to the power source. Answer 4, Fuses or circuit breakers
I am sorry but I think you have written wrong in 1st question it would be *with high resistance Because of there would be a low resistance the current will flow easily and damage our appliences!
@@meaw-6970 Thank you for making me do deeper research, I now see heat is generated due to the resistivity of conductors not current. Cause heat is the dissipation of energy from the resistors.
@@preraj175 Of course the fuse breaks if the current is too high, but I was referring to the high resistance (and corresponding voltage drop) of the fuse when the circuit is functioning normally.
Sir, why is it that overload happens when you occupy all the sockets in an extender? Extenders do have a rating right? Like when it specifies a certain Amperage it is only limited to that Ampere rating. For example, an extender with 4 sockets (rated at 10A), can only provide a maximum current draw of 2.5A on each socket. Hence, devices requiring higher current draw more than 2.5A should not work properly instead of being damaged since over current cannot happen because of the Amperage rating of the extender? Maybe for extenders without Amperage rating can overload happen? Ty sir Mahesh for the awesome explanation :)
See... The rating on any device, an extender or even a fridge specifies the max voltage on which it can work at full effeciency. It does not mean that if you increase voltage, excess current won't flow. So if a device is rated 220V 100W, then it can work properly till the current is 0.45 A. [R=488 ohm] However if we increase voltage to let's say 230V, I=0.47 A. This exceeds the capacity of device which is 0.45 A. This causes overloading and harms device if earthing wire is absent. NOTE: Values of current, resistance,etc. are taken as an approximate Hope that helped
@@shreyjaiswal5250 Correct me if I'm wrong, my understanding now is an extender rated for 10A can only provide a maximum of 10A. Like for example, if device A is plugged into one of the sockets of a 4-socket extender, and it draws 7.5Amps of current, then the remaining 3 sockets can only handle 2.5Amps total of current draw. Meaning, we can't plug in another device/s which tally to more than 2.5Amps of draw. Am I correct Ma'am/Sir Shrey?
@@Hino_55 Hey Jd, The rating given to devices shows that they will operate at max efficiency till that point. Like a 10 A extender will be performing at its max capacity when 10 A flows through it. But this does not imply that current>10 A won't be allowed to flow through it. Let us assume there is no fuse preventing excess flow into the extender and there is a voltage increase so that an I of 20 A starts to flow via the extender. This will lead to overloading and the device and wires may burn due to excess heat being produced[Joule's law of heating]. So in conclusion, the extender will get damaged if the voltage or current exceeds the amount specified in its rating. Further clarification, let us assume that the extender is a tube light with the same rating, then when I=10 A light is brightest; when I10 A, the tube light gets damaged. Hope that helped.
There are two problems in a circuit. 1.Overloading 2. Short-circuit. >Overloading Definition:- Too much current. Causes: attaching to many devices. And short circuit. Why is it a problem A) It can melt insulation. B) In worst cases, the wires may even catch fire. Cure? Our little hero- Electrical fuse. It is present on the live wire. If current exceeds its limit; it melts and breaks the circuit. No flow of current. > Short circuit- circuit became short ( low resistance path) When live wire and neutral wire get too touchy. They make a new path- a path with low resistance. And lower the resistance; more the current. Then zzzzzzzz. Overloading.
That is because current flow starts through live wire and then comes back through neutral wire. Logically, we want to save the appliance and therefore we place the fuse, which is basically a limit setter for current flow, in series with live wire so excess current does not reach the appliance. Hope that helped :)
You can imagine it like this: if one end of 2 wires is connected to a battery in a simple circuit and the other end to a bulb, current flows and the bulb lights up in normal conditions. This is because there is 1 path through which current can flow. In parallel circuits current is divided in ratio 1/R. This implies that more current flows through smaller resistance device. You can interpret this as current tends to flow along least resistance path. Now when insulation is damaged and wires come in contact, their resistance is extremely low as they are behaving somewhat as a single wire only at the point of contact. Current prefers this path instead of the comparatively higher path across the bulb and therefore a large amount of current flows through the wires back to the battery. This goes on and by Joules law of heating, such high current leads to great amount of heat and this leads to sparks and wires melting. This damages the whole circuit. That is why we use fuses and earthing wires. Fuses prevent excess current to flow through circuit by breaking it and earthing wires prevent electric shock to humans if they touch metallic body of device in case of current leakage. Hope that helped.
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mahn this is such an underrated video, literally only 56K views in 2yrs
there is no other video that explains this concept so clearly
Because people are studying in English medium school but they didn't know how to understand quickly
I 100% agree!! I nearly skipped but he caught my attention with his beautiful handwriting and then I was hooked and now have an understanding of how short circuit works! Thank you
IKR!!!
This is by far the best video I’ve come across explaining these things. Very easy to understand for people like me who know nothing about this & also great for people who know a bit already. I love the diagrams ect as you go, absolutely outstanding. Thank you!!!!
Exactly dealing the point without doing this that and this is the way a Student wants to learn
Excellent 👌
Overload is when excessive amount of current is drawn by our device which is out of the capacity of our device due to which insulation cover broke which can even cause shock to the user and may also cause fire.
Overload happens
Due to high strike in voltage
Too much current
Short circuit
Too many devices are connected
Or some faulty devices are connected
Short circuit happens when live and neutral wire stick together due to brokage of insulation cover and a large flow of current happens is known as Short circuit
Fuse protects our device from shortcircuiting and overloading
Thank u 💓
Ty, it was kinda helpful
The excitement I have when watching your videos 😄 am addicted, I don't know what kind of teacher I will be because of you 😁. Thanks so much for this 🙏
1.Overload occurs when the current drawn by the wire is more than that of its capacity.it causes fires
2. When voltage increases, thunderstorm etc.
3.Shot circuit is when current travels along an unintended path of low resistance. Happens when insulation of live and neutral wires break
4.Safety fuse and circuit breaker
Flawlessly explained and presented! Thanks for not overlooking any causes!
Literally i am addicted to your videos,what an explanation mahn👏👏
Thank you sir.
Exactly what I needed..loved it
Thank you so much. This will surely help to rock my test. I recommend everyone to watch this video!!
Yes it will because this man make science so easy to understand 😄
Understood sir..I watched many videos on short circuit
but I understood only yours.
I was confused between short circuit and overload you gave me clarity.
Love you and thank you sir ❤❤❤❤
Answers to the question:
1. Too much current flowing in the circuit. It is bad because it can cause insulation to melt and can also cause fire.
2. The three ways by which overload can happen:
(i) Too much of voltage in the current
(ii) Too many devices connected to the circuit
(iii) short-circuit
3. Short-circuit happens when the current in a circuit happens to take a shorter and a lesser resistant path.
e.g.,
(i) when a live wire touches a neutral wire
(ii) when the circuit is surrounded by water
(Extra {what it can cause}: short circuit can allow a huge amount of current to flow though it, as there is much lesser resist and can use burns or melts in the devices.)
4. Insulation protects the circuit.
Feel free to correct me if I'm wrong.
Sir thank you teaching physics in a nice way through this video I have understood the concept of ch 13
Very nice
Nice
Perfectly expialned👍👍
i do apology ur right the more u put loeads the more the current flows
Great explanation sir!! 👌👌
Hii brow you are cool
Such a amazing explanation then my school teachers meanwhile my teachers telling that in our house we have series circuit not the parallel ones😂😂😂
❤❤❤
Thank u sir it is very easy for my exam🙏
amzing
I once connected the live wire and the neutral wire by connecting an external wire between the live socket and neutral socket on switch board and power went out. I was really dumb to do that. Realised now that I actually did a short circuit.
LOL
Thanks sir
Brilliant explanation
Thanks a lot sir!
Awesome
You saved our discussion, thanks bro
Thanks
Very nicely explained sir.
Awesome video...thx
Outstanding!
thankyouu
Thankyousomuch sir!
Sir! Can you make a video on EMF and Voltage in detail?
Both are same
Super! Thank you, sir!
.......I am just figuring this out more in writing, from what you said and my electrical experiences...... Hmm, to much electrical current on the wire, can heat it up, but the fuse or breaker stops this, by stopping the flow of electricity..... To many devices would draw maximum electricity for the wire fuse or breaker, and electricity would stop when the fuse or breaker shuts off......The short circuit would place to much electricity directly on the wire, and/or indirectly interfere with other aspects of a device, and cause the fuse or breaker to put the brakes on and trip off the flow of electricity....
V=I x R ....according to this equation if value of resistance is zero incase of short circuit then current becomes infinite.
Sir , isn’t practical installing fuse in the neutral wire?
You have a beautiful voice
It helped a lot sir 🙏
👍👍👍🌹🌹🌹
Sir, how much minimum resistance required to avoid short circuit in AC&DC
It depends on electrical appliances... For example if you use electric iron which drawn 15amp current then we will use 15 amp of fuse.... Fuse depends on electrical applianxes
hi sir, what is low over load current
😮
Wow
Sir , heat =I^2RT, also wire provides zero resistance , therefore there should be zero heat produced in the wire although current can much much higher
Hey Rohit, Resistance is taken as 0 but it's not really 0. To be precise, it is so low that it is negligible. If you have an extremely large current, then heat will also be extremely large.
And since we are talking about parallel connections, the formula we use will be H=V²t/r[because V is constant in parallel connections]. You can see that the heat produced will be extremely large.
Hope that helped.
Thanks sir , for the video
Is there part 4 or further of this series
Why short circuit is low resistance path
Sir can we touch neutral wire without any socked
yes If you are already neutral
Yes we can touch neutral bcs neutral has 0v
Yes. But its advisable not to, cus the voltage is not exactly 0
sir, why your energy in this video is not as high as the previous videos??
Tbh, English version is better than the other one
Answer 1, An overload is an increase current due to voltage (current is directly proportional to voltage) with low resistance causing the wire to overheat, giving a class C electrical fire, which is why its bad.
Answer 2, Either there was a voltage spike in the AC or too much electrical device draws current.
Answer 3, Is an interruption in the circuit by another conductor with even lower resistance compare to other loads, that can completes a quicker path back to the power source.
Answer 4, Fuses or circuit breakers
I am sorry but I think you have written wrong in 1st question it would be *with high resistance
Because of there would be a low resistance the current will flow easily and damage our appliences!
@@meaw-6970 Thank you for making me do deeper research, I now see heat is generated due to the resistivity of conductors not current. Cause heat is the dissipation of energy from the resistors.
Since a fuse has a high resistance (1:35), doesn't this create a problem, as there will be a voltage drop in the circuit ?
It breaks within a second . So no
@@preraj175 Of course the fuse breaks if the current is too high, but I was referring to the high resistance (and corresponding voltage drop) of the fuse when the circuit is functioning normally.
The fuse resistance is high compared to the wire resistance. However, the voltage drop in the fuse is very low compared to 220 V.
@@josecarlosferreira4942 Thanks! 🙂
i am missing ram sir😟😞😞
ram ram
Mahesh Sir is really great too
I think he is ram sir, speaking in English
@@kuchhtohai1518 No, he is Mahesh Shenoy Sir❤
Sir, why is it that overload happens when you occupy all the sockets in an extender?
Extenders do have a rating right? Like when it specifies a certain Amperage it is only limited to that Ampere rating.
For example, an extender with 4 sockets (rated at 10A), can only provide a maximum current draw of 2.5A on each socket. Hence, devices requiring higher current draw more than 2.5A should not work properly instead of being damaged since over current cannot happen because of the Amperage rating of the extender?
Maybe for extenders without Amperage rating can overload happen?
Ty sir Mahesh for the awesome explanation :)
See... The rating on any device, an extender or even a fridge specifies the max voltage on which it can work at full effeciency. It does not mean that if you increase voltage, excess current won't flow.
So if a device is rated 220V 100W, then it can work properly till the current is 0.45 A. [R=488 ohm]
However if we increase voltage to let's say 230V, I=0.47 A.
This exceeds the capacity of device which is 0.45 A. This causes overloading and harms device if earthing wire is absent.
NOTE: Values of current, resistance,etc. are taken as an approximate
Hope that helped
@@shreyjaiswal5250
Correct me if I'm wrong, my understanding now is an extender rated for 10A can only provide a maximum of 10A.
Like for example, if device A is plugged into one of the sockets of a 4-socket extender, and it draws 7.5Amps of current, then the remaining 3 sockets can only handle 2.5Amps total of current draw.
Meaning, we can't plug in another device/s which tally to more than 2.5Amps of draw.
Am I correct Ma'am/Sir Shrey?
@@Hino_55 Hey Jd, The rating given to devices shows that they will operate at max efficiency till that point. Like a 10 A extender will be performing at its max capacity when 10 A flows through it. But this does not imply that current>10 A won't be allowed to flow through it.
Let us assume there is no fuse preventing excess flow into the extender and there is a voltage increase so that an I of 20 A starts to flow via the extender. This will lead to overloading and the device and wires may burn due to excess heat being produced[Joule's law of heating].
So in conclusion, the extender will get damaged if the voltage or current exceeds the amount specified in its rating.
Further clarification, let us assume that the extender is a tube light with the same rating, then when I=10 A light is brightest; when I10 A, the tube light gets damaged.
Hope that helped.
@@shreyjaiswal5250 Thanks Shrey, this comment was 5 months old, I appreciate you taking the time to reply. Cheers mate!
@@Hino_55 Always a pleasure to help mate :)
There are two problems in a circuit.
1.Overloading
2. Short-circuit.
>Overloading
Definition:- Too much current.
Causes: attaching to many devices. And short circuit.
Why is it a problem
A) It can melt insulation.
B) In worst cases, the wires may even catch fire.
Cure?
Our little hero- Electrical fuse.
It is present on the live wire. If current exceeds its limit; it melts and breaks the circuit. No flow of current.
> Short circuit- circuit became short ( low resistance path)
When live wire and neutral wire get too touchy. They make a new path- a path with low resistance.
And lower the resistance; more the current. Then zzzzzzzz. Overloading.
Thank you!! ♥️
That device looks suss
Sir, you forget to answer that "why fuse is connected to live wire"
It is because as most of current flows from the live wire
That is because current flow starts through live wire and then comes back through neutral wire. Logically, we want to save the appliance and therefore we place the fuse, which is basically a limit setter for current flow, in series with live wire so excess current does not reach the appliance.
Hope that helped :)
@@jayeshdeshmukh9624 This statement is a scathing indictment of the Indian schooling system.
jay hunamuman gyan gun sgar
Ram sir???
Why the resistance of the path becomes too low when a naked live wire toches the naked neutral wire??
You can imagine it like this: if one end of 2 wires is connected to a battery in a simple circuit and the other end to a bulb, current flows and the bulb lights up in normal conditions. This is because there is 1 path through which current can flow.
In parallel circuits current is divided in ratio 1/R. This implies that more current flows through smaller resistance device. You can interpret this as current tends to flow along least resistance path.
Now when insulation is damaged and wires come in contact, their resistance is extremely low as they are behaving somewhat as a single wire only at the point of contact. Current prefers this path instead of the comparatively higher path across the bulb and therefore a large amount of current flows through the wires back to the battery. This goes on and by Joules law of heating, such high current leads to great amount of heat and this leads to sparks and wires melting. This damages the whole circuit.
That is why we use fuses and earthing wires. Fuses prevent excess current to flow through circuit by breaking it and earthing wires prevent electric shock to humans if they touch metallic body of device in case of current leakage.
Hope that helped.
I am looking for this Same question 🤣🤣
Short circuit is overcurrent not overload
overload is too much load not too much current
How do we know there is low resistance path inside the insukated wire
Ram.......?
Why I can I do
In my country ground and neutral are bonded but I dont know whay is the proper way to wire a conection
We use two hot(120+120)
Which country?
@@zebakhan3320 Ecuador (south America)
am not understand that you asking
Jio mobile na maw ban** mobile
Sir please speak English I can't understand
Time waste
Your ans is wrong
Thanks
Thank you sir
Thank you sir