Root mean square current?

1. Feb 3, 2010

magnifik

root mean square current??

1. The problem statement, all variables and given/known data
A) If the voltage across the outlet terminals in your house is 110 Vrms at 60 Hz, and an ideal 5 H inductor is placed across the outlet terminals, what is the magnitude of the rms current flowing through the inductor?

B) Assuming that the 110 Vrms at 60 Hz has zero phase shift, what is the phase (in degrees) of the current flowing through the non-ideal inductor of the previous problem?

2. Relevant equations
P=RI^2
P=(Vrms)^2/R
P=Vrms*Irms

3. The attempt at a solution
not sure what to do with the frequency and induction(?) values in part A

2. Feb 4, 2010

Redbelly98

Staff Emeritus
Re: root mean square current??

Those equations work for a resistor, but this problem has an inductor. Your text book or lecture notes should have the relation between voltage and current for an inductor.

3. Feb 4, 2010

magnifik

Re: root mean square current??

resolved

Last edited: Feb 5, 2010