Please refer to the attached pdf file. I am curious why the phasor of I'1 and I2 are 180 degree apart from each other? To my understanding, I2 creates flux "phi2" in Fig. 2.27(b). Then I'1 creates flux " phi' " to oppose the change of "phi2".
So, both I'1 and phi' will have terms like d{phi2}/dt. They should be 90 degrees apart from I2 and phi2, aren't they?
Sincerely,
blackmelon
So, both I'1 and phi' will have terms like d{phi2}/dt. They should be 90 degrees apart from I2 and phi2, aren't they?
Sincerely,
blackmelon
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