Electrical Engineering: Ch 12 AC Power (8 of 38) How to Calculate Average Power? (Impedance)

[@dennisbauer3315]

Thank you Sir, also, and I am an old bloke from Australia, who has found a passion in life after 60 years, Maths or as some say Math, I was 70 years old this April 2018 I had little schooling as a lot did away from Cities in Australia in those years. I enjoy your teaching, I understand your step by step very well, which is a great way to learn.Thank you.

[@MichelvanBiezen]

I am also learning new things all the time. It is part of what keeps life interesting. Enjoy and welcome to the channel.

[@jabirali8658]

Lots of love from India I appreciate your hardwork Keep shining

[@MichelvanBiezen]

Thank you so much 😀 Welcome to the channel!

[@vincenzolucido9644]

You make it so easy to understand ! Thank you

[@MichelvanBiezen]

You are welcome! Glad you found our videos! 🙂

[@oximas-oe9vf]

Isn't the 120 the rms value for voltage and to get max you need to multiply by root 2🤔🤔🤔🤔?

[@MichelvanBiezen]

The 120 V is indicated as the maximum voltage, not the RMS vottage.

[@frankiec2029]

Thx sir I have a question about phasor form in phasor form, why"120" is Vmax, shouldn't it be Vrms?

[@Micholin16]

not because the units for the voltage source were given in V and not V_rms.

[@jobhiojkp]

I came here trying to remember the formula for average power. In the 70's, when I was in school, it was stated as Average Power = 1/2 Re [V I*] which of course is the same as the formula on the board.

[@MichelvanBiezen]

Good to see you are back at it.

[@ArchangelMichael12]

Where is the rest of chapter 12? It says 8 of 38 but I can't seem to find the other 30 videos. Please help!

[@MichelvanBiezen]

We are working on them. They should be published soon.

[@alinoory5236]

Dr. Michel, i lost how to find the phase angle when you divided 70/30 and you took the arctan. how did you got the angle? thanks

[@MichelvanBiezen]

30 represent the real part (horizontal) and 70 represents the imaginary part. So the phase angle is the inverse tangent of (70/30) You use a calculator to find the inverse tangent of 7/3

[@alinoory5236]

@@MichelvanBiezen Thank you so much for you fast reply. I was doing that but I was getting 1.6067 that's why I was confused but it turns out that I was using radian mode not the degree mode lol. Thanks again for your help.

[@MichelvanBiezen]

Yes, that happens more often than you think

[@sarahkhairina]

hi dr. may i know why you use 120V as Vmax?? Isnt it 120V is Vrms as its in phasor form??

[@cooldownff6789]

Thanks

[@MichelvanBiezen]

You are welcome. 🙂

[@anisurrahman3941]

tnx sir, i am from bangladeshi.

[@MichelvanBiezen]

Welcome to the channel.

[@mohammedbushnaq965]

Thanks