Yet it all works for us and makes life possible on the earth.
Very true, the field changes but very infrequently relative to human existence. And when it changes, dramatic things happen on Earth.
Sorry if I am repeating myself here...
I am suggesting here that, as with Sun photon radiation which affects (heats the Earth and interacts with the atmosphere), so does the Sun’s mag field interact with Earths. And the Sun mag field is many times that of Earths. I am even suggesting that the Suns mag field induces the Earth’s mag field (maybe cancels it out if it is self induced).
Hey, there is a thought — does the Sun’s mag field affect the Earth’s orbit (in additional to gravity) and might the earth’s orbit radius shrink or expand based on this attraction. However, if the Earth’s mag field is a result of the Sun’s mag field, then equilibrium is reached. And, if the Earth’s mag field is independent of the Sun then the two bodies can attract or repel. I am guessing that the former is true. :)
“...I am even suggesting that the Suns mag field induces the Earth’s mag field (maybe cancels it out if it is self induced). ....”
The dynamics of the core gives the earth its field, the sun’s field contributes to the overall ambient field on the earth. If it induces a magnetic field here, given the tremendous difference in field strengths of the two fields any additional induced field would be so small as to be very difficult to measure. At least to my understanding, could be wrong.