Irms is what I need to find th US power outout, I have no resistance, P is the answer I'm
looking for, so voltage is the same. I'm lost here how does this help?
I assumed that Europe used DC because You need different plugs there.
Homework Statement
A 580w heater is designed for use in Germany, where electric outlets supply 230V(rms) service. What is the power output of the heater when plugged into a 120V(rms) outlet in the U.S.? Ignore the effects of temperature on the heater's resistance.
Homework Equations...