2. Solve the equations for the loop currents I1, I2 and I3 if the mesh-current analysis produces the following three equations: 2020° = (5 + 3 – j4)I1 – (3 – j4)I2 %3D 10290° = (3 – j4 +2)I2 - (3 – j4)I – 213 -15Z0° – 10Z90° = (12 + 2)I3 – 212

I dont understand phase shift and lags?

Consider the circuit shown in Figure 1. V1 is a 7.2 kHz sine wave with an amplitude of 4 V.Figure 1: RC Circuit Schematic1. Determine the total impedance (Z) of the circuit.2. Using V1 as a zero-phase reference, calculate the values of the following:a) Amplitude and phase of current (I)b) Amplitude and phase of voltage across R1 (VR1)c) Amplitude and phase of voltage across C1 (VC1

15) Kirchhoff's Voltage Law (KVL) states that                                                                A) the product of the phasor voltages around any closed path must equal zero. B) the sum of the phasor voltages around any closed path does not have to equal zero. C) the sum of the phasor voltages around any closed path must equal zero. D) the sum of the phasor voltages around a closed path cannot include "through the air."