Could someone tell me about this power loss thing?

[rk]

Is the powerloss described here on 'just the way up' or the whole way......also, is it the 'overall' powerless over the life of the thing or just for one 'up and back' of the electrons or whatever? Could you descibe why you think what you do? thank you!

[physics]

its just the way up.
and overall powerloss just means that from point A to the house and the total power loss.

[Whatlol]

but sometimes there are multiple lines - how does that change things?

if they give you 2 power lines and say they have a resistance of 2 ohm each you need to use the total resistance in your calculation

[Whatlol]

so that's just: 1/2 + 1/2 = 2/2
which is the inversed to produce 1 again.
hence 1 ohm total resistance?

umm ? where are these values from

[Whatlol]

but sometimes there are multiple lines - how does that change things?

so that's just: 1/2 + 1/2 = 2/2
which is the inversed to produce 1 again.
hence 1 ohm total resistance?

umm ? where are these values from

Since the power lines are in parallel won't you have to add them via 1/resistance, then convert back by inversing the sum of them to find the total resistance?

no im fairly sure you just add them together.

[schnappy]

The wires are in series, even if they physically run parallel to each other. The resistances are series components, you simple add 2+2=4.

[chap]

yes, and remember use P= I^2 R to work out power loss from power lines.