- #1
NoConflict
- 1
- 0
Homework Statement
Basically, I need to understand how to calculate Irms and I*rms given a Vrms and an impedance Z.
Example question:
Given Vrms = 120 V at an angle of 30° and an impedance of Z = 10 Ω, find Irms and I*rms.
Homework Equations
How exactly do I solve for Irms and I*rms?
The Attempt at a Solution
I figure that Irms = Vrms / Z. However I am a bit confused as to the I*rms.
From my notes, I would imply that I just flip the sign of the angle, but this does not seem right.
My attempt:
Irms = Vrms/Z = 120angle30/10angle0 = 12angle30
And for I*rms, just flip the sign of the angle: 12angle-30