AC Theory: How to Show the Relationships Between Current and Voltage using Phasors in AC Circuits

In this video we'll continue to gather the information we need to understand AC Theory and the Mystery of the Fluorescent Lamp. We'll see the relationship between voltage and current in our three different types of AC loads. Also as a bonus we'll look at a memory aid that helps us to recall these relationships.

To download the worksheet that complements this series of videos click the following link:

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[terencelai]

Good One....I will remember CIVIL forever and

[educationpower]

Very good. Informative and clearly presented. Thank you

[tedlahm]

Will take some time before this sinks in. Thank you.

[ndereratjijahura]

Thanks for excellent presentation Joe Robinson.

[no_short_circuit]

Thanks Joe. Can't say I can see how it all fits together yet but I'm sure that'll come. At 2:09 for resistive loads you have a radius for the voltage and a "half radius" for the current along the same line. At 5:23 you have the current at 90 degrees south (for inductive) and at 7:43 you have the current at 90 degrees north (for capacitive). How are these positions established?

[thomaschatham]

Excellent video as always, when I was in electronic technician school in the U.S. Coast Guard we remembered the phase relationships with the following saying "ELI the ICE man" which reminds us that in an inductive circuit (ELI) voltage leads current and in a capacitive circuit (ICE) current leads voltage. I think your one of the very best teachers that I have seen on the internet. Keep it up!

[dexwhitmore]

Just come across this vid ask had Phasors land in my inbox for classwork, followed the city and guilds slides provided and I couldn't grip it at all. Figured I'd see if Joe had a video and thank god, I have a better understanding now. The '2 arms' method/graphic (the actual Phasor diagram? As opposed to 2 waveforms on a graph?) made it so easy to understand and yet I had none of that in the C&G slides, just waveforms....

Is there a particular programs used to generate the Phasors and animations as thst really helped my understanding.

Thanks Joe!