When building an electric generator which is the bigger factor in the use of the magnets?
I would say they both are important. You’ll see, when you apply more force to the generator, then it’s acceleration will be greater, therefore, the speed of the rotor will be faster and you will get more voltage. Now, the area the magnet covers is important as well because the more magnetic lines strike the wires, the more electricity you get. Depending on the kind of generator you are using, then the speed of the rotor will have different reactions. For example, if you are using a triphasic generator of synchronisation, your speed will determine the frequency of your phases. Hope this helps.
