Return to Blackboard Wiley PLUS SvobodaDorf Introduction to

Return to Blackboard Wiley PLUS Svoboda/Dorf, Introduction to Electric Circuits, 9e Help I System Announcements (1 Unread ASSIGNMENT RESOURCES Problem 4.4-3 Homework 1 Determine the node voltage vb for the circuit of the Figure. Exercise 4.4-1 Problem 4.4-1 4.4-2 Problem 4.4-3 6 kS2 Problem 4.4-5 3 k2 12 Review Results by Study object the tolerance is +/-4% LINK TO TEXT powered by MapleNet Copyright O 2000-2016 by John Wiley & Sons, Inc. or related companies. All rights reserved. T:n EN X WileyPLUS https:// edugen.wileyplus.com /edugen/liti/main.un PRINTER VERSION BACK NEXT Question Attempts: 0 of 10 used SAVE FOR LATER SUBMIT ANSWE

Solution

Appplying nodal analysis (KCL) on top node we have

[(12-V_b)/6] + 5i_a = V_b/3

since we can write [(12-V_b)/6] = i_a and using this equation in above equation we have

[(12-V_b)/6] + 5 [(12-V_b)/6] = V_b/3

implies 6[(12-V_b)/6] = V_b/3

implies 12 -V_b = V_b/3

implies V_b= 9V