Homework 3 (Node-Voltage Analysis) Is VA R₂ VB ww - Vx 1 x + www R₁ R3 ww ww RA R1 =10 KQ, R2 =20 KQ ' R3 = 10 ΚΩ, R4 20 ΚΩ A. Formulate Node Voltage Equations A. Put in Standard Matrix Form C. Use Cramer's Rule to find Vx D. Model Circuit in LTSPICE and compare results to (C)

Fig: 1