bozeha
Newbie level 1
![Newbie level 1](/styles/images/ranks/alevel1.gif)
helo
i learn that the ac current works as pulses for example : from +300 to -300
in the middle ther is 0
so way the lamp in the house work stable and not tornd on and of , on off on off .........
i learn that the ac current works as pulses for example : from +300 to -300
in the middle ther is 0
so way the lamp in the house work stable and not tornd on and of , on off on off .........