OHM’S LAW WHEEL AND POWER MATRIX - COMBINING OHM’S LAW AND POWER LAW IN ONE EASY CALCULATION

In this video from LearnElectrics we will look at the Ohm’s law wheel which combines the Ohm’s Law and Power Law Triangles together into one set of formulas.
These two formulas, ohms law and power law, are fundamental to our understanding of electrics and they feature in many electrical trade exams.
Some new starters struggle with understanding how we arrive at these combined formulas, so in this video we will show you: and we have also included the Power Matrix, a variation of the wheel that is, for me, much easier to understand and use.
Then we will show you some example calculations using the Power Matrix and then its over to you to have a go at some practice questions yourself, and yes, we’ve provided the answers.
The Ohm’s Law Wheel and Power Matrix shown in this video are available as downloadable and printable PDFs on our website
In the search box … Ohm’s Law Wheel and Power Matrix
To view all of our videos type in LearnElectrics all one word into the UA-cam search bar.
This is video No.163 on our UA-cam channel where we have videos on a wide range of electrical topics.

[@bencordwell8186]

Without a shadow of a doubt one of the best educational videos I've ever come across. The channel definitely sticks out in my mind for sure.

[@learnelectrics4402]

Thanks Ben, did you see last weeks video on Ohms Law for Tecnichal exams. Lots of useful info and questions for you to try. have a look on this link. Dave.
ua-cam.com/video/EIlLGR09E6Y/v-deo.html

[@mb-electricalservices]

Fantastic! I will be forwarding this on to my apprentice. Thanks for the efforts you put into your videos. 👌
You're teaching me a thing or two too! 😁

[@learnelectrics4402]

Awesome, thank you Mike. And yes, please spread the word. Appreciated, Dave.

[@kevinhr1987]

Amazing job, soo easy to understanding.
Thank you soo much for your time.

[@learnelectrics4402]

Thanks Edwuin, much appreciated feedback. Dave.

[@AMIR-nm7fo]

THANK YOU FOR THIS GREAT VIDEO.

[@learnelectrics4402]

Glad you liked it, lots more to come. Dave.

[@three-phase562]

Nice, should be very useful for apprentices and exam revision.

[@learnelectrics4402]

Yes, definitely, every little helps. Its served me well for over 40 years.

[@catalin9489]

These formulas are ok for DC curent or single phase AC with purely resistive loads.
They do not work for 3 phase calculations or single phase with inductive or capacitive loads ( as it is the case in the real world ). Just an observation.

[@learnelectrics4402]

Thanks for your comments. Appreciated.

[@samiahmadzai4665]

can you explain question 2, 3 please. I didnt get it

[@learnelectrics4402]

Use the matrix shown in the video. Write it down so you don't forget it.
Q2 Voltage is the square root of PxR.
Q3 current is volts divided by ohms.
hope this helps.

[@inemesit11ibanga]

Everyone commenting on this video has to like the video. I don't wanna sound like an authoritarian, but do not dine and dash. This means that if you learn from it, like it.

[@learnelectrics4402]

Thanks for watching.