A while back I was looking at an electrical website and an electrician on there casually mentioned that if there was a drop in supply voltage at the house where he was working, then there would be an increase in current used on an appliance.
Personally, I would disagree and say instead that a drop in voltage in my opinion, would cause a drop in current....Has anyone here got some thoughts on this?
Let's say a light bulb has 200V and 1000W stamped on its box in the shop (I am using supply 200V here instead of the normal 230V simply to make our calculations easier). What can we expect to happen to the current at that bulb if the supply voltage were to drop to 100V down from that 200V ? (ignoring thermal alteration of the filament).
