If a series RC, RL, or resistor-inductor-capacitor (RLC) circuit was given to you in a black box (with access only to the two input terminals), how could you determine the component values?
use a swept frequency input voltage, and examine the current flow
w 2pi*f 2pi*60 377 rad/s Z R + j(wL - a million/wC) the place j sqrt(-a million) (in case you do no longer comprehend this line, pass directly to the subsequent) |Z| sqrt[R^2 + (wL - a million/wC)^2] |Z| sqrt{4.84e4 + [377*27e-6 - a million/(377*16e-6)]^2} sqrt[4.84e4 + (a million.02e-2 + a million.66e2)^2] 275.6 ohms (word thet the inductor seems especially very like purely a chew of cord with L0) Then rms i one hundred twenty/275.6 0.435A answer
