------------------- The answer is still the same NO:
Nor was I suggesting that you get a book that tells you to "Hook the red wire to the + terminal, the
What I suggested was a book that gave the principles (with the math) which would make your motor question moot. (Torque =(motor bugger factor) times field flux times armature current. See the word "flux" in this relationship?
Note that as soon as you say "Gauss" you are talking about "flux density" -that is the magnetic field and the force of the magnet depends on the gap area and the flux density- that is - "flux"
In your 2 permanent magnet example the answer is "maybe"- if the magnets are close together and N-N oriented, you may well get a higher force. If S-N you will get a lower force. So-it depends on the actual geometry of the situation.
HOWEVER in a motor the two magnet example above is rather meaningless.
I re-babble- the armature flux is (deliberately) perpendicular to the field flux and the two do NOT add arithmetically. Ideally they should not add in any way. As for the motor- again, ideally the design is that the field flux and the armature flux are perpendicular to each other so the fields do not add arithmetically. This is done deliberately as then the torque per ampere is the greatest. The actual flux produced by the armature is far less than that of the field because the air path is longer between poles where the armature flux is strongest. In practice armature flux (while a natural consequence of armature current) is a nuisance as it can produce undesirable effects but I am not going to go into this here.
Do your homework.