(Solved): E-1. Use phasor and impedance to determine the unknown currents/ voltages as indicated in each cir ...

E-1. Use phasor and impedance to determine the unknown currents/ voltages as indicated in each circuit. a. If $$v_S=200\sin (2?50t)$$, find $$i,v_1$$ and $$v_2$$. Express your answers as functions of time. b. In the circuit below, the voltage source is sinusoidal with RMS voltage $$71\mathrm{V}$$ and frequency $$50\mathrm{Hz}$$. Determine the RMS values of $$i$$, $$i_1$$, and $$i_2$$ c. In the circuit below source is $$50\mathrm{V}$$ (rms) and $$?=300\mathrm{rad}/\mathrm{s}$$. Determine the RMS value of the source current.