If i plug a 30 watt soldering iron to a 220 v socket, will the current it draws will be 30/220 as voltage into current is power? Or 30 watt means something else here?

 

If i plug a 30 watt soldering iron to a 220 v socket, will the current it draws will be 30/220 as voltage into current is power? Or 30 watt means something else here?

Hi,

30 watts is the heating power which would be real power. There may be some reactive component too as some irons have an inductive part that draws a little current too. So 30 watts here means the real part of the total apparent power is 30 watts and that is what does the heating, although the actual current may not be 30/220 but may be a bit higher because of that reactive part unless the element is purely resistive. If the iron spec plate says "AC only" then you can figure that it has an inductive component because purely resistive elements can work on both AC and DC.