Can we or the universe ever achieve an authentic 0hz unchanging charge with 0 AC characteristics?
Can we or the universe ever achieve an authentic 0hz unchanging charge with 0 AC characteristics?unchanging charge = zero current.
No need to get as philosophical as to considering the lifetime of the universe, a DC signal is what you define it to be, it is always a highly idealized description of the actual signal. There are no true DC signals, they are a spherical cow in a vacuum. There seem to be perfectly constant charges, every single electron seems to be holding its charge quite well, its only when you look at more than one charged particle that things start to get complicated.
Well? I guess you might call this a philosophical question, but, no matter the power source creating your DC power, it will eventually die meaning no longer a DC signal as it has an AC attribute. (Heat death of the universe and all that...) Even a permanent magnet's field fades over time, hence they are not truly constant.
Can we or the universe ever achieve an authentic 0hz unchanging charge with 0 AC characteristics?
How about the earth's magnetic field?
Can we or the universe ever achieve an authentic 0hz unchanging charge with 0 AC characteristics?
Well? I guess you might call this a philosophical question, but, no matter the power source creating your DC power, it will eventually die meaning no longer a DC signal as it has an AC attribute. (Heat death of the universe and all that...) Even a permanent magnet's field fades over time, hence they are not truly constant.
Can we or the universe ever achieve an authentic 0hz unchanging charge with 0 AC characteristics?How about the earth's magnetic field?
Well? I guess you might call this a philosophical question, but, no matter the power source creating your DC power, it will eventually die meaning no longer a DC signal as it has an AC attribute. (Heat death of the universe and all that...) Even a permanent magnet's field fades over time, hence they are not truly constant.
Can we or the universe ever achieve an authentic 0hz unchanging charge with 0 AC characteristics?
Well? I guess you might call this a philosophical question, but, no matter the power source creating your DC power, it will eventually die meaning no longer a DC signal as it has an AC attribute. (Heat death of the universe and all that...) Even a permanent magnet's field fades over time, hence they are not truly constant.
Can we or the universe ever achieve an authentic 0hz unchanging charge with 0 AC characteristics?
Don't forget the other time direction. It's not "DC" if it didn't already exist since the beginning of the universe. So we by definition cannot "create" a DC field.
Well? I guess you might call this a philosophical question, but, no matter the power source creating your DC power, it will eventually die meaning no longer a DC signal as it has an AC attribute. (Heat death of the universe and all that...) Even a permanent magnet's field fades over time, hence they are not truly constant.
Can we or the universe ever achieve an authentic 0hz unchanging charge with 0 AC characteristics?
Well? I guess you might call this a philosophical question, but, no matter the power source creating your DC power, it will eventually die meaning no longer a DC signal as it has an AC attribute. (Heat death of the universe and all that...) Even a permanent magnet's field fades over time, hence they are not truly constant.
Can we or the universe ever achieve an authentic 0hz unchanging charge with 0 AC characteristics?
Don't forget the other time direction. It's not "DC" if it didn't already exist since the beginning of the universe. So we by definition cannot "create" a DC field.
Can we or the universe ever achieve
It's not "DC" if it didn't already exist since the beginning of the universe.
One can get a pretty stable magnetic field with superconductors. Superconductors can work as essentially perfect shield to external fields (type 1 superconsuctors have exactly 0 internal flux). The flux captured in a superconducting ring stays constant as long as the ring is superconducting.
There is still a rather minor uncertainty in how much the parts move relative to each other. So the problem is not electrical noise but more mechanical and vibrations.
For the "DC" ideal, it really depends how one defines DC - there are way than looking at the fourier tranformer over all time. It is more about stable over the measurement time with settling effects completed.