Thank you for the links, they are
Very interesting and informative, but studying these subjects would not give clear answers to the three questions and the speculation that I listed in the previous post. The answers that the studies would give would still be speculation, as explained in the quotation: “Although the details of the dynamo effect are NOT KNOWN in detail, the rotation of the Earth plays a part in generating the currents which are PRESUMED to be the source of the magnetic field.”
If you know the answers then why are you evading the questions?