Magnetically Coupled Circuit EXAMPLE

In this video I have solved an example about magnetically coupled circuit using dependent sources.

The book that I am referring to in this video is:

Fundamentals of Electric Circuits 5th Edition
by Charles Alexander (Author), Matthew Sadiku (Author)

[marcos]

Nice video! Alternately you could solve the circuit in less time by replaicing a star of decoupled inductors instead of the 2 coupled inductors. These are the relations that allow you to make the transformation: L1=Lm-L11, L2=Lm-L22, L3=Lm. This operation is lawful because the 2 coupled inductors ha a common terminal, therefore we do not modify the topology of the circuit. By :)

[ultralaggerREV]

Ok, you got me lost at the I_1 going through the J2 inductor.

I_1 is ENTERING the dot, so that should make the voltage source at the J6 inductor as POSITIVE? You have negative on top and positive below of the J6 voltage source, isn’t it supposed to be reversed?

[ujjawaljain]

Absolutely amazing!! Cleared all my doubts!!

[GreatnessUrge]

🤔 In the second loop equation. Why is it 3ji1 for the dependent source and not 3j(i2-i1) ?

[md.shaheenalam]

please make a tutorial of exercise problem 13.15 norton equivalent for the circuit

[mostainbillahrobi]

thank you, so much mam, but some problem we can't see your mouse pointer

[amanchander]

Please make your cursor visible and thank you so much.

[mjlky]

ma'am could you please upload/include the matlab script here in the description box. thank you

[abhishekkumarsah]

It is good, it will be more helpful if you solve another problem same like this, madam

[kanthakborkar]

Ma'am do you still response Hike messages ??

[abhishekkumarsah]

It is good, it will be more helpful if you solve another problem from Alexander same like this, madam

[bayanhassounah]

what's the program which you write on?

[egygyerekegycsontjusztlasz]

I still don’t understand how can i tell the polarity of the dependent source

[cristinejoyalmazan]

Hello po. Hoping you'll notice my reply po. I just want to ask if why didn't you transpose the 100angle of 60 po?

[craze]

The current going through j2 is entering the dot and because of this, you said the charge at the dot of the j6 inductor is negative. So this tells me when the current is entering the dot of one inductor it means the dot of the other inductor is negative. Later in the video, you said because the current is leaving the dot on the j6 inductor the dot on the j2 inductor must be negative. From this, I gathered that when current is leaving the dot on one inductor it means the dot on the other inductor is negative. These can't both be true so I was wondering if you could let me know what I'm misunderstanding?