1. In the first part of this lab you will determine the phase shift, Ago = gov (Pi: between a voltage drop across an unknown element hidden in black box (either a 7131;,ij 07.\" Resistor capacitor or an inductor, see the circuit details in the figure to the right) and then 1909 identify the type of the unknown element and its nominal value. If the voltage and current change with time according to v(t) = 12mm, sin(wt + 901,) i(t) = imax sin(wt + (pi) Let's say we have co = 6280 rad/s, 17mm, = 5.01 V and imax =0.0138 A (see the diagram below). (a) What is the phase shift between the voltage (brown) and current (green)? (b) Determine the type of the unknown element and its nominal value. Voltaue'Ch AM Culvert. Ch B [N Ago = (in degrees) Unknown Element: Nominal Value = (units)