Just found your website on google.com and screamed in thanks for finding someplace that might be able to help me with this. I'm going for my Bachelor's in Computer Engineering and the class I'm taking "Fundamental Properties of AC Circuits" has been killing me. A question that I've run into tonight is running me ragged. Your help with this would be greatly appreciated.

Question: What is the secondary current in an AC circuit with 120Vrms, 100W load resistor, and a 3:1 turns ratio?

I've tried every equation I can think of and have been able to find in my textbook and just haven't been able to come up with the answer.

Thanks guys!