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The Electric Academy
Canada
Приєднався 5 лют 2015
Sometimes electrical theory can come across as confusing. The videos you find here will be simple and to the point.
Why use big terms and concepts when you don't have to!
Videos are being added constantly so subscribe so you don't miss any.
Why use big terms and concepts when you don't have to!
Videos are being added constantly so subscribe so you don't miss any.
WHAT THE FLUX IS UP WITH RELUCTANCE?
Reluctance is to magnetism as resistance is to electricity. This video goes into the math and concepts behind this not so tricky idea.
Переглядів: 9 103
Відео
WHAT THE FLUX IS MMF?
Переглядів 5 тис.3 роки тому
There is no need to make magnetism more complicated than it has to be. In this series I will walk through the concepts of Magnetomotive force.
LEFT HAND RULE FOR COILS
Переглядів 4,5 тис.3 роки тому
Remember that we are dealing with electron current flow, hence the left hand and not the right hand. This video will show you how to determine poles with electrical polarity or determine electrical polarity with poles.
BOOLEAN ALGEBRA (LOGIC GATES): For Electricians
Переглядів 2,5 тис.3 роки тому
Let's not overcomplicate things shall we? As with most things the explanation of logic gates can be tricky. They don't have to be. This video walks through what each one does.
Connecting DC sources in series (and parallel)
Переглядів 1,7 тис.3 роки тому
As long as you observe the polarity you will have nooooo problems. If you need help at all with fundamental electrical math check out the course I partnered with the British Columbia Institute of Technology on: www.bcit.ca/telc0015
MOTOR EFFICIENCY: What about the power factor?
Переглядів 13 тис.3 роки тому
Motors are inductors so we need to account for power factor. If you need help with electrical math check out: www.bcit.ca/telc0015
Motor efficiency calculations explained
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As with most electrical concepts, this one often gets overcomplicated when it doesn't need to be.
ACTUAL POWER VS RATED POWER
Переглядів 9 тис.3 роки тому
Just because something is rated at a certain wattage does not necessarily mean that it will put out that power no matter what.
FARADAY'S LAW EXPLAINED
Переглядів 3,2 тис.3 роки тому
As current rises and falls across an inductor, a voltage is induced. We use Faraday's law to determine what that voltage is.
VOLTAGE DIVIDER WITH A GROUND REFERENCE.
Переглядів 8 тис.3 роки тому
This video walks through the basics of a voltage divider circuit and the importance of understanding what your ground reference is.
VOLTAGE DIVIDERS (UNLOADED VS LOADED)
Переглядів 17 тис.3 роки тому
Adding a load into a voltage divider makes a significant difference to the circuit. This video walks through the process and how to calculate it.
UNBALANCED BRIDGE CIRCUITS
Переглядів 1,7 тис.3 роки тому
This video walks through how to calculate unbalanced bridge circuits and how to determine the current in a jumper.
VOLTAGE DIVIDER (GROUND REFERENCE)
Переглядів 1,9 тис.3 роки тому
This video walks through the basics of a voltage divider circuit and the importance of understanding what your ground reference is.
# OF CONDUCTORS IN A 4 WAY SWITCHING CIRCUIT
Переглядів 7464 роки тому
# OF CONDUCTORS IN A 4 WAY SWITCHING CIRCUIT
DETERMINING THE AMOUNT OF WIRES FOR A 3 WAY CIRCUIT
Переглядів 1,1 тис.4 роки тому
DETERMINING THE AMOUNT OF WIRES FOR A 3 WAY CIRCUIT
AMMETER INTERNAL RESISTOR CALCULATION
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AMMETER INTERNAL RESISTOR CALCULATION
VOLTMETER INTERNAL RESISTOR CALCULATION
Переглядів 3,8 тис.4 роки тому
VOLTMETER INTERNAL RESISTOR CALCULATION
BASIC OHMS LAW: Getting back to basics
Переглядів 1,4 тис.4 роки тому
BASIC OHMS LAW: Getting back to basics
The difference between EMF and Potential Difference
Переглядів 5 тис.4 роки тому
The difference between EMF and Potential Difference
PHASES: Teaching in the time of covid EP:005
Переглядів 3974 роки тому
PHASES: Teaching in the time of covid EP:005
SINE WAVE ANALYSIS (EFFECTIVE OR RMS)
Переглядів 1,8 тис.4 роки тому
SINE WAVE ANALYSIS (EFFECTIVE OR RMS)
SINE WAVE ANALYSIS (INSTANTANEOUS VALUES)
Переглядів 4,3 тис.4 роки тому
SINE WAVE ANALYSIS (INSTANTANEOUS VALUES)
Tq sir
Physics teacher yapped for an hour on how to do this but I watched this 2 minute video and I understand it perfectly and was able to explain it to my mates. Saving my physics grade frfrfrf. WWWWWW
If don't no R then
So its sort of magnetic momentum.
Pls explain how the ohm's law works and the voltage
So, what size wire should I use? Is the wire with a current carrying capacity of 5.88A or 16.8A? because according to my understanding, if you use 5.88A wire then the peak output capacity is only 5.88A x 201.25V. but if you use 16.8A wire, it is equal to 575v x 16.8A. what's true? please explain. Thank You.
AHHHHHHHH!
Thanks a lot!!!! Very clear. I just subscribed!
Excellent
You audio levels are way too low
This job is miserable and stressful. And then you want to stress me out even more with drug testing.Ive never shown up intoxicated but have been so shaken or worn from work that i needed to unwind on some evenings. Especially when I ran a business and didn't have to get drug tested. Cleaning up doesn't help. Harrassing and threatening me about what I do on evenings or weekends doesn't help. Hard drug and alcohol users easily cheat your drug tests and cause work place accidents. Ive seen it. Your only punishing alot of responsible weed smokers. It stays in your system a long time. Ive had to wait a while to be able to pass a piss test. I refuse to cheat. Its not worth the risk to me. Im staying clean but its really frustrating because I hate alcohol and other drugs and this job is taxing. Its mainly that i hate being on a leash. Its my damn body not yours. Just like people drink responsibly and dont come to work intoxicated, people smoke responsibly and don't show up to work stoned.
Hey man, this is Mike Sullivan, your newest subscriber from Saint Charles, Missouri (U.S.A.) ! I am having a wiring problem in my doublewide mobile home! 2 month's ago my room mate plugged in a space heater in her bedroom and it knocked out all the wall receptacle's from her room all the way into the livingroom, the ceiling fan and the switch that runs the outside porch light! I checked the breaker box and the breaker was still in the on position so I turned it off then on again to reset it but nothing happened! I decided to pull the double 15 amp breaker and replace it with a new one from Home Depot. It worked! Everything was working fine again until 2 week's ago my room mate said she was gonna turn in for the evening after she finished reading a book, she plugged in a reading lamp and bang, all the same receptacle's along the wall's, the ceiling fan and porch light went out again !!! I checked the breaker again with a friend of mine who is a maintenance man for an apartment complex, he checked the brand new breaker with his meter and told me it was good! I pulled the receptacle that the space heater and lamp had been plugged into when the power went out and I began inspecting it for any evidence of a short and I noticed that it was backstabbed! The wire's looked good but I decided to change all 8 receptacle's with new screw in type because I wanted to have the piece of mind knowing that the back stabbed one's were gone and the new screw in type were installed to reduce the chance of fire and in the process locate the problem, but all 8 of them looked fine! Can you tell me what to do next to solve this mysterious problem, where do I go from here ??? S.O.S., PLEASE HELP !!! I would greatly appreciate your opinion, thank you sooooo much in advance!
Time 3:07 tan is not equal to opposite \ hypotenuse. It is tan = opposite \adjacent
You did everything except explain why current lags voltage in an inductive circuit. Some of the things made sense. However, when you have a graph depicting voltage and you are talking about current, and there is no current depicted on the graph, then this doesn't explain the current lagging voltage in an inductive circuit. It's a description of where the voltages are, but not the current . You brought up current at the end of the video, but it didn't explain why current lags voltage. Give it a rest ! Most people who want to teach and claim to have some good way of explaining things are actually very bad teachers and can't explain anything that is very technical and can't use physics or electrical theory, mathematics, or an in-depth understanding of the subject matter to make their point. This is simply another example of somebody trying to teach electronics, but doesn't fully understand the subject matter themselves, and can not fully explain why their equation is important to why current lags voltage. Try again. You will need your equation. Explain where that came from. Next, your graph needs the applied voltage, the induced voltage, and the current superimposed on the graph. Show where 0, 90, 180, 270, and back to 360 degrees. Now, point out the current, voltage, induced voltage, electromagnetic charge on the inductor, and show the relationships that fall into play to produce the induced voltage and the out of phase current. I've listened to your video several times and It's very obvious that you did not achieve your goal.
Sorry where u get the 746 from ?
Thanks 😊👍🙏💯
I'm lucky to find this video. Can't wait to explore your channel. Thank you so much
The best
Can I get a link for vectors how to to where to start
"Punch a hole in the wall" in a rental?
why is that the book i read it was done clockwise. what's the difference sir? the Author of my book is Robert Rosenberg
Aporox @5:00 you cant calculate current strictly from turns, (ampere-turns). Without a value for EMF. Current is stil governed by ohms law. Maybe your calculating the max current ?
Thank you very much. God bless you
Living off grid, just My Wife and i, We have used this type cord for four years connected to Our small generator and to an electrical outlet. We only use a few lights, fans and a small ac in the summer. Everything else is propane. Always kept the main breaker off with a metal bracket i made with a lock. In Our situation, it has worked great. Now, this is not for everyone and i do not recommend it if You don't know what Your doing. Being an electrician, I have seen much worse electrical rigs. If You don't know what Your doing, just be safe, get an interlock switch for the main breaker and do it right.
I miss doing these calculations 😊 I used to do this n high school
230 v to 56 volt Please winding ratio Ampere not issue
This has been of so much help to me. Thank you so much.
Thank you!
At 5:48 when you calculate amps from VA, you divide VA by Volts. Do you not also need to divide by sqrt of 3?
Square root of 3? Vs root of 3?
Thank you!!!
beatiful
The dotted line means its mechanically operated
Great video
your sketch couldnt be right in this situation v is maximum ......
From the knuckle to the fingertip helps me understand flow much better, thank you
So this is all for single phase transformer.
60 is a curve to see who is paying attention. It's obviously 55.90
Have a nice day Sir.Can i ask a question.What if parallel wye , low voltage. tap to the contactor. thanks
great explanation. can someone also explain how many amps can such circuit deliver to the load?
I enjoyed the video really clarified the calculations. The question I am left with is in Manitoba Breaker panels don't have a 90C breaker rating only 75C therefore even if we have 90C cable we are forced to use the 75C column for wire ampacity so what impact does that have on distance correction factor if the 90c cable rating is not allowed to be used because it is supplied by a breaker only rated for 75C?
How to you inverse sign both sides on a calculator my brain isn’t making sense of this, how did u get 38.4
Nice explanation but you have to write and explain some clearly. Also I have got some information in this video thanks for you
how making some vides that are missing values that you need to solve for the circuit.
Very informative video I wish you were my teacher in Humber college 25 years ago and thanks
Thank you
Short and simple.Tomorrow is my exam and I have understood this topics in 5 minutes thanks.❤
230 v to 60 Please turn ratio primary to secondary out put
let's say if the transformer power is 2300VA then what is the reference for determining the wire size?
btw this is by far the most helpful videos I have ever seen and helping me study for the red seal examination! thank you so much
for example 5, there is 2 different kinds of cables with different kinds of temperature ratings, R90 & TW. you said the r90 has a 90degree rating and the. tw has a 60 degree rating? how do I know or where can I find what temperature ratings the cables have? is it in the code book or should it be known already?