The electron is a single particle, not a steady current, but again we throw caution to the winds, and estimate the current it creates as e/Δt, where Δt, the time for one orbit, can...The electron is a single particle, not a steady current, but again we throw caution to the winds, and estimate the current it creates as e/Δt, where Δt, the time for one orbit, can be estimated by dividing the size of the atom by the electron's velocity. (This is only a rough estimate, and we don't know the shape of the orbit, so it would be silly, for instance, to bother with multiplying the diameter by π based on our intuitive visualization of the electron as moving …
