*This free video took MONTHS to make!* If you’d like to support Paul’s efforts, links below: Watch ad-free here:➡ www.patreon.com/theengineeringmindset Get your engineers mug here:➡ tinyurl.com/electrical-engineer-mug Join our electrical course waiting list:➡ forms.gle/7ToixmRap8RGfcU17
In 1962 while pursuing a BSA Radio Merit Badge at age 10, I became involved with the Military Auxiliary Radio System (MARS). All that to say: I had to learn all the Electrical Formulas by rote. Any young person today interested in Electrical Engineering will be well served by your excellent presentation. Thank you for not “dumbing down” the subject in any way.
Nice to see a video that highlights the role of surface charge in circuit theory. For too many years it has been neglected in basic courses, to the point that ignorance of its role is a major cause of misunderstanding electrical phenomena. I envy your ability to synthesize concepts in so short a video. It's taking me multiple half an hour videos just to introduce the concepts of voltage and potential difference.
Very refreshing (no pun intended) to hear someone attempt to actually explain electricity -instead of just using the "water-flowing-in-a-pipe" analogy. I'm still not desperate to understand how it works, and watching this video a few more times should help a long way!
Summary: EM fields/waves are travelling first when you flip the switch. They induce "current" in the wires, but it's only a power loss (some fraction of fields penetrates the wire - superconductor doesn't allow that). Energy is OUTSIDE the wires (very close, in the insulation).
At 8:21 the correct formula to calculate the Time to travel should be time=distance/speed, not time=speed/distance. The result is correct, but the operands are swapped. Great explanation though, thanks!
9:40 For the love of god, please explain us, in this fasion, how having 2 or more batteries in series increases the voltage. I drew all of this out on paper and it makes no sense to me still. According to this, I should still expect the same voltage!
When you put the negative electrode of the top battery in contact with the positive electrode of the bottom battery, the excess electrons and the lack of electrons neutralize each other. Both batteries are forced to produce a new charge separation that will result in double the positive charge on top and double the negative charge at the bottom. Each battery still produce the same charge separation.
To add to the reply above, it may help to consider a reference point such as ground. Sometimes ground is connected to earth (earth ground) amd other times it's just a common reference. The point between the 2 batteries could be considered your ground (or 0 volts) reference point, the the voltage on the negative side of the fkrst battery would be negative voltage. We just typically put the negative side of the supply voltage as the ground reference point as a matter of convention, and each battery connected in series adds that batteries voltage. This also happens inside batteries with more than one cell in series, e.g. a 9V battery has 6 x 1.5 voltage cells in series inside of it.
So how did they see those electrons again to formulate the math formulas ? It's a metering system to charge money for something not understood. Hence the name, Electrical Theory.
If you have not noticed yet, we build math to fit findings all the time. Our electrical math is good enough to build computer chips and not burn up or fry. It may lack a little in the magnetic field of coils, but we get close. All of the math we use for electrons has been accurate enough with a few notable changes in history to allow trillions of transistors in a CPU to function at ghz speed. As well as the RAM, and Power Supplies. So maybe it's not 10p% perfect in all areas, but its close enough for us to build miniature computers with screens that communicate wireless aka Cell Phone. So the math I would say is good enough for the task as far as I have seen so far.
I think both are great teachers, but I don’t care if it’s myth or not. The truth is that in this video I learn a lot more than in a year of electricity in my bachelors. I love this channel and had help me a lot in school (industrial engineering undergrad) and in the field.(I work in maintenance for heavy machinery).
Veritasium is hardly a channel about science. Look at his video about "The military's dumbest idea" or IQ tests. Anyway, I don't think the concept of visual learners has any meaning but having it in the titke of the video conveys the intended message.
*This free video took MONTHS to make!* If you’d like to support Paul’s efforts, links below:
Watch ad-free here:➡ www.patreon.com/theengineeringmindset
Get your engineers mug here:➡ tinyurl.com/electrical-engineer-mug
Join our electrical course waiting list:➡ forms.gle/7ToixmRap8RGfcU17
In 1962 while pursuing a BSA Radio Merit Badge at age 10, I became involved with the Military Auxiliary Radio System (MARS). All that to say: I had to learn all the Electrical Formulas by rote. Any young person today interested in Electrical Engineering will be well served by your excellent presentation. Thank you for not “dumbing down” the subject in any way.
Nice to see a video that highlights the role of surface charge in circuit theory. For too many years it has been neglected in basic courses, to the point that ignorance of its role is a major cause of misunderstanding electrical phenomena.
I envy your ability to synthesize concepts in so short a video. It's taking me multiple half an hour videos just to introduce the concepts of voltage and potential difference.
I can't see electricity but I can see this is a great video!
Thank you, hope you enjoyed it
Very refreshing (no pun intended) to hear someone attempt to actually explain electricity -instead of just using the "water-flowing-in-a-pipe" analogy. I'm still not desperate to understand how it works, and watching this video a few more times should help a long way!
Summary: EM fields/waves are travelling first when you flip the switch. They induce "current" in the wires, but it's only a power loss (some fraction of fields penetrates the wire - superconductor doesn't allow that). Energy is OUTSIDE the wires (very close, in the insulation).
this is perfect thank you
You're welcome, hope you enjoyed
Nice video. Everything is well explained 😊😊
At 8:21 the correct formula to calculate the Time to travel should be time=distance/speed, not time=speed/distance. The result is correct, but the operands are swapped. Great explanation though, thanks!
Amazing video, I always love your content! We've even had some of your early chiller videos played in my HVAC classes. Always a good watch
Glad you like them!
Warning:this is peak
I love yours videos 😍
Thank you, glad to hear
My entire first year fundamentals course in 15 minutes 👍 😂
Nice video
Thank you!
This guy is great🎉🎉
Electrons = Angry Pixies..
About time :)
9:40
For the love of god, please explain us, in this fasion, how having 2 or more batteries in series increases the voltage.
I drew all of this out on paper and it makes no sense to me still.
According to this, I should still expect the same voltage!
When you put the negative electrode of the top battery in contact with the positive electrode of the bottom battery, the excess electrons and the lack of electrons neutralize each other. Both batteries are forced to produce a new charge separation that will result in double the positive charge on top and double the negative charge at the bottom. Each battery still produce the same charge separation.
To add to the reply above, it may help to consider a reference point such as ground. Sometimes ground is connected to earth (earth ground) amd other times it's just a common reference. The point between the 2 batteries could be considered your ground (or 0 volts) reference point, the the voltage on the negative side of the fkrst battery would be negative voltage. We just typically put the negative side of the supply voltage as the ground reference point as a matter of convention, and each battery connected in series adds that batteries voltage. This also happens inside batteries with more than one cell in series, e.g. a 9V battery has 6 x 1.5 voltage cells in series inside of it.
Terrific 😊
9:32這是鹼性電池的剖面圖
碳鋅電池不是這種原理
Oh boy here we go 💕💕
Awesome!
beautiful
Mulțumim!
❤
So how did they see those electrons again to formulate the math formulas ? It's a metering system to charge money for something not understood. Hence the name, Electrical Theory.
Rewatch the part from 1:26, that should explain it
Again, nobody has ever seen an electron....it is a hypothesis. Just because a mathematical equasion exists does not make it relevant.
If you have not noticed yet, we build math to fit findings all the time. Our electrical math is good enough to build computer chips and not burn up or fry. It may lack a little in the magnetic field of coils, but we get close. All of the math we use for electrons has been accurate enough with a few notable changes in history to allow trillions of transistors in a CPU to function at ghz speed. As well as the RAM, and Power Supplies. So maybe it's not 10p% perfect in all areas, but its close enough for us to build miniature computers with screens that communicate wireless aka Cell Phone. So the math I would say is good enough for the task as far as I have seen so far.
This analogy with magnets in tube is brilliant and perfect.
Analogy is for children.
@GrandePunto8V Then I'm very old child 😉
@@GrandePunto8Vas is commenting that something is for children 😊
If circuits doesn't reduce current (in series) does that make resistors practically useless?
electricity father of only fans
Veritasium's channel explains that visual learning is a myth.
I think both are great teachers, but I don’t care if it’s myth or not. The truth is that in this video I learn a lot more than in a year of electricity in my bachelors. I love this channel and had help me a lot in school (industrial engineering undergrad) and in the field.(I work in maintenance for heavy machinery).
Veritasium is hardly a channel about science. Look at his video about "The military's dumbest idea" or IQ tests. Anyway, I don't think the concept of visual learners has any meaning but having it in the titke of the video conveys the intended message.