David Combs wrote:
In article , RBM wrote:

If the lights are flickering, you have a loose connection. If the lights are
dimming when a motor starts, it's normal



Hmmm. Lights dimming. Blinking too (let's say).

One possible reason: light got dim enough that you can
see the 60-cycles (or would that be 120 both brights and
dims per second?).


David


Hmm,
Can you show here big initial reactive load (impedance) can change frequency
via math?