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## Main Question or Discussion Point

Is there a theoretical limit to the time constant of an electric motor?

I was think, if inductance is simply the conversion of current into the magnetic field, and if increase in resistance limits that current for a given power supply, that having a higher time constant would in effect allow for a stronger magnetic field for a given current. But what is the limit to this? Could I develop a series of optimized coils such that the magnetic field I produce with a given power supply can be of successively increasing magnetic fields?

I was think, if inductance is simply the conversion of current into the magnetic field, and if increase in resistance limits that current for a given power supply, that having a higher time constant would in effect allow for a stronger magnetic field for a given current. But what is the limit to this? Could I develop a series of optimized coils such that the magnetic field I produce with a given power supply can be of successively increasing magnetic fields?