Grade 12 Physics | Electrodynamics | Motors and Generators

In this video you will learn the theory behind Generators and Motors. You will also learn how to use the Right-hand Rule for Generators and Left-hand rule for Motors. You will also learn the difference between alternating current and direct current.
I've included a Grade 12 past exam question on how to calculate RMS voltage and current as well as Average power.
Enjoy!!!

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Thank you ☺️

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Anyone here before trials?

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Trials 2024 ❤

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during

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[@MlungisiNkosi]

Most welcome

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[@MlungisiNkosi]

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Sir you really helped us the other day before writing our prelim exam I had no idea that electrodynamics was such a simple topic . I really enjoyed that paper & I'm sure I got all the marks on Question 9 So I just wanted to say thank you so much .

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What is commendable about you is that you took the time to come back and say thank you... I absolutely appreciate it.

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It honestly is such a pleasure… thank you for the kind comment

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@@lexluther971 my pleasure...

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[@MlungisiNkosi]

Yep

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Last minute things 😅😅

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[@thatwasawesome551]

I really appreciate you helping us.....but on the next video can you do Photoelectric affect please

[@MlungisiNkosi]

You are welcome. We are taking it one step at a time.... Definitely that section is the next item on the agenda.

[@thatwasawesome551]

Thank you

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[@MlungisiNkosi]

Welcome to the family. You're welcome

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[@MlungisiNkosi]

It is my pleasure

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Uhm still confused 😕 what is the difference between AC motor nd AC generator and also DC motor nd DC generator can explain

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[@karishmasewraj6437]

Won't it move clockwise in question 9.1.4 since the magnetic field moves from North to South ?

[@MlungisiNkosi]

Please give the time stamp

[@karishmasewraj6437]

43:17

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It is my absolute pleasure 😊

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🙆🏼‍♀️PHD in teaching yoh 🔥

[@MlungisiNkosi]

Danko 🔥

[@ntsebomolapo7752]

So sir, if they have given us Voltage and they have not said whether its Vave or Vrms, should we assume that it is Vrms? And should we also assume the same for current and Power?

[@MlungisiNkosi]

Yes, particularly if it’s next to the power-rating of the device

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You’re welcome ☺️

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[@MlungisiNkosi]

You're most welcome

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Thanks!

[@MlungisiNkosi]

You’re welcome

[@tsholofelommopane9659]

I subscribed immediately...coz wow this was helpful.....so how do i know that the voltage give is the rms voltage...asking with ref to the question paper treated

[@MlungisiNkosi]

So, the examinor will make some indication of it.

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I believe sir nkosi can teach u an entire syllabus an hour before you write an exam and i promise you you'll get the best results.

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The pleasure is all mine ❤️

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[@MlungisiNkosi]

You’re welcome

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I promise I will do so before Prelims

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If we given time as hour, how to convert it to seconds?

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[@MlungisiNkosi]

That's what this channel is here for... You're welcome. Keep working hard ❤️

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There's this topic in chemistry it's called chemical industry can you make a video about it

[@melissamarubini7895]

Oh I asked my teacher he said it's out of syllabus so u can leave it

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@@melissamarubini7895 yes that will be my next stop. Look out this coming week

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@@melissamarubini7895 I thought you meant Fertilizer industry

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Excellent teachings

[@lwazisithole9339]

Thank you for the video, could you please do photoelectric effect on the next video

[@MlungisiNkosi]

Most definitely... I'll be recording it tomorrow.

[@lwazisithole9339]

@@MlungisiNkosi Thank you, I'll definitely be waiting for it

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Good evening Sir. Why do we divide by 2 on the Average Power?

[@MlungisiNkosi]

Because we took maximum values

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Yes it is monetised. But educational content does not make much money

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You're more than welcome...

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You're most welcome 😊

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They changed the Vrms to 150V, wouldn't that change the resistance as well?

[@MlungisiNkosi]

Not necessarily... Remember resistance is usually constant. Only current changes with a change in resistance.

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Siyabonga. Helpful

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Glad it was helpful!

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But I am 😊

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Hi sir. Is it not Vmax/root2?

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Nevermind I've got it😁

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You’re welcome

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Miss it always the case that the north pole stays on the left and south pole stay on the right

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sir how do you know when you are given the Vmax?

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You will be told specifically

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You're welcome

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Done, last two chapters before tomorrow's exam😌

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Keep going... Hope you wrote well.

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❤

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Motor doesn't not have AC

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Correct

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Wow, you are incredible.... Keep working at this pace, I bet a distinction will be on the cards. Thank you

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Your work is highly appreciated sir. I've learnt more work in from your channel in four days than I did in class the whole year. God bless you :)

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Thank you

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Thank you soooooo so much

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Me too. Goodluck dear. I pray nothing but the best for you🥺♥️

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After learning my first attempt out of 15 I got 13 I'm so happy

[@MlungisiNkosi]

Awesome 🤩

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I enjoyed this lesson, you made everything soooooo simple.... thank you

[@MlungisiNkosi]

My pleasure... Blessings 😊

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Thank you sir !🔥👏 I already plan on watching all your videos before prelims ! I already got full Marks for my electricity task because of you sir 😃🔥 thanks again !

[@MlungisiNkosi]

You are most welcome... Glad I could help. 😊

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Matric 2024 from Fezeka Sec. Here & this Playlist is saving me from procrastination. 🇿🇦

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Thank you... I do hope it at least helps you pass

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@@MlungisiNkosi I got 80% inshallah 🙏

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[@MlungisiNkosi]

You're welcome. 🤗

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I'm thinking of telling my school principal to kidnap you so that you can teach at our school 😂

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Thank you so much!! I finally understand the left and right hand rule and I'm writing tomorrow😭😭

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🤣😂 me too

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It is my pleasure to assist

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Watching this video for trial exam tomorrow❤

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41:00 Finger licking stuff😮‍💨