I was doing some reading on the time-energy uncertainty principle, which seems more obscure than posiition-momentum. The books refer almost entirely to the electron orbital energy levels in the atom. That is, the emitted wavelength dispersion, as the electron drops to a lower energy, is inversely related to the time emitted, in a probabilistic manner; the narrower the spectrum, the wider (more unpredictable) the time dispersion
But does the formula hold for every energy measurement? For example, circuit voltage - as on a capacitor - is a measure of energy. Does this uncertainty principle apply there? Does it place a limit on our time (frequency) resolution in every circumstance?
It's not clear to me what it means, in these classical situations.
-- Rich