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Homework Statement
From the circuit find the impedances of the capacitor and inductor
I_{s}(t)=15 cos(500t) A
Homework Equations
The Attempt at a Solution
So is this right? Convert the 15 cos 500t into polar form, 15<0 I. Then the resistor is 8 ohms, so 15*8 = 120 V.
Therefore, to find the impedance capacitor is
v(t)=120 cos(500t)
Z_{c}= 1/(0.2*10^3 * 500)
=j10
but now I'm stuck. How do find grad is(t)?
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