Sir I can't believe your videos were all deleted! Huge loss of such valuable precious information on almost all electronic topics ugh!. I felt so lucky to have viewed them all and even downloaded one or two. Information is really precious folks.
You have a true gift of teaching and patience for extreme beginner. I am just beginning to understand how electricity works to fix up my riding mower (hopefully higher level things eventually) and all this is fascinating stuff.
Finally, the concept of "ground" makes sense with relation to electronic mechanisms that are functioning under circumstances where they cannot possibly be connected to the earth!!
Thanks to professors like you sir and UA-cam, the unlucky people who cannot afford having the right teaching can now have it. provided they understand English😊. Many thanks for your sharing 👍👍
I love this video. It does have an apparent contradiction (if my newbie understanding is correct) 8:50-11:06, but this is one of the many reasons I like it. The whole video provides so many insights and clarifications that I personally needed. I suggest readers resolve the following. If current from the side is 0.1 A and current through R2 is 1.1 A then current through R1 is 1 A. The voltage across R1 is therefore 10 volts, but this contradicts the 9 volt conclusion. Revisit the assumption the current from the side is 0.1 amps and assume the voltage source from the side is 11 volts instead. It occurs to me there is no contradiction in what vocademy says, but a miscomprehension on my part. Whereas initially - I thought vocademy said 0.1 amps from the side, he would have said 0.1 more amps through R2 than before; - I thought vocademy said 0.1 + 1.0 amps through R2 and 1.0 amp through R1, he would be saying 0.2 + 0.9 amps through R2 and 0.9 amps through R1. Multiplying out R1 we get 0.9 × 10 = 9 volts; exactly as vocademy says!
12:01 If a person gets an accidental contact to hot or live wire one's heart would enter Ventricular Fibrillations VFib if an AC current of about 6 mA is established across the heart; remember that condition is met if AC current of 50 mA to 100 mA goes through the ones body as a whole. O.K. Now I get why an RCD with 30 mA leakage current rating would help in preventing those life endangering hazardous leakage of currents though human or animal entities! Thank you so much for very good velog for human safety in domestic electrical systems.
Im making my own power regenerator using ac-dc psu and inverter and im wondering should i ground the inverter from psu input ground to the inverters ground screw or is the negative from psu output used as a ground ?
A question please. What is the point of making AC neutral (or the negative DC potential in your example here) the same potential as earth. If neutral was not the same potential as earth and you accidentally touch the hot wire then electricity couldn't flow through you to earth - similarly as it wouldn't with an isolation transformer. The hot wire would thus not cause harm. Thank you for your excellent videos by the way.
12:22 Wouldn't there be a small amount of current through the green wire because there is no return path to the source terminal and since there is no return would that mean nothing is generating an electric field
Sir I can't believe your videos were all deleted! Huge loss of such valuable precious information on almost all electronic topics ugh!. I felt so lucky to have viewed them all and even downloaded one or two. Information is really precious folks.
Why were they deleted 😭
These circuit diagrams were helpful. Never have seen such a clear explanation of ground.
What is ground? Baby don't hurt me, don't hurt me, no more 🎶
Wtf lol
You have a true gift of teaching and patience for extreme beginner. I am just beginning to understand how electricity works to fix up my riding mower (hopefully higher level things eventually) and all this is fascinating stuff.
You're the man when it comes to circuit analysis
Finally, the concept of "ground" makes sense with relation to electronic mechanisms that are functioning under circumstances where they cannot possibly be connected to the earth!!
Thanks to professors like you sir and UA-cam, the unlucky people who cannot afford having the right teaching can now have it. provided they understand English😊. Many thanks for your sharing 👍👍
Great instruction, excellent simple teaching aids. Well done!!
Great explanation on grounds and demystifying the path of least resistance.
I love this video. It does have an apparent contradiction (if my newbie understanding is correct) 8:50-11:06, but this is one of the many reasons I like it. The whole video provides so many insights and clarifications that I personally needed.
I suggest readers resolve the following. If current from the side is 0.1 A and current through R2 is 1.1 A then current through R1 is 1 A. The voltage across R1 is therefore 10 volts, but this contradicts the 9 volt conclusion.
Revisit the assumption the current from the side is 0.1 amps and assume the voltage source from the side is 11 volts instead.
It occurs to me there is no contradiction in what vocademy says, but a miscomprehension on my part.
Whereas initially
- I thought vocademy said 0.1 amps from the side, he would have said 0.1 more amps through R2 than before;
- I thought vocademy said 0.1 + 1.0 amps through R2 and 1.0 amp through R1, he would be saying 0.2 + 0.9 amps through R2 and 0.9 amps through R1.
Multiplying out R1 we get 0.9 × 10 = 9 volts; exactly as vocademy says!
12:01
If a person gets an accidental contact to hot or live wire one's heart would enter Ventricular Fibrillations VFib if an AC current of about 6 mA is established across the heart; remember that condition is met if AC current of 50 mA to 100 mA goes through the ones body as a whole.
O.K. Now I get why an RCD with 30 mA leakage current rating would help in preventing those life endangering hazardous leakage of currents though human or animal entities!
Thank you so much for very good velog for human safety in domestic electrical systems.
Im making my own power regenerator using ac-dc psu and inverter and im wondering should i ground the inverter from psu input ground to the inverters ground screw or is the negative from psu output used as a ground ?
hello just subbed...you are a good teacher. Am a student in EEE year 2 but I came across this and though about watching it for my career's sake
Thank sir your video explain well difference between ground and earth
A question please. What is the point of making AC neutral (or the negative DC potential in your example here) the same potential as earth. If neutral was not the same potential as earth and you accidentally touch the hot wire then electricity couldn't flow through you to earth - similarly as it wouldn't with an isolation transformer. The hot wire would thus not cause harm. Thank you for your excellent videos by the way.
12:22 Wouldn't there be a small amount of current through the green wire because there is no return path to the source terminal and since there is no return would that mean nothing is generating an electric field
Sir can you please upload what is capacitance video please
sir I wish I had you for my teacher when I was at school sir
🙏
Great
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👍👍👍🌹🌹🌹