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Root mean square current?

  • Thread starter magnifik
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  • #1
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root mean square current??

Homework Statement


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?

Homework Equations


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


The Attempt at a Solution


not sure what to do with the frequency and induction(?) values in part A
and not sure where to start with B...
 

Answers and Replies

  • #2
Redbelly98
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Homework Equations


P=RI^2
P=(Vrms)^2/R
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
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resolved
 
Last edited:

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