I'm having some trouble understanding some parts of this question(adsbygoogle = window.adsbygoogle || []).push({});

This is what I've been doing but I'm not quite sure why it works:

I have some similar problems and have been getting the same problems with them. I don't know why the line current equals I(eff) and line voltage equals V(eff). Also why does V(an) = V(aA)+V(AN).

1. The problem statement, all variables and given/known data

2. Relevant equations

3. The attempt at a solution

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Help with polyphase circuit

**Physics Forums | Science Articles, Homework Help, Discussion**