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Mutaja
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Homework Statement
A1 = 5A, A2 = 4A, A3 = 3A. V = 120V
a) Given the circuit above, find A4
b) Find the angle between E and IT. Draw a diagrammatic (?) and find the power in the circuit.
c) Find the values of R, L and C.
Homework Equations
The Attempt at a Solution
a)
IT is 5A.
R has 120V across it, and 4A through it. Therefore ZR = 30Ω∠0°
L has 120V across it, and 3A through it. Therefore ZL = 40Ω∠90°
C has 120V across it, and xA through it.
I'm not sure how to proceed here. Can I use admittance, somehow?
I'm thinking I should be able to find the angle of the current through the R and L components (the current should be 0° and 90°?) Whatever's left goes through the capacitor (at -90°?). How can I figure out how to compute this?
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