Question

Problem 4.23 - Enhanced - with Hints and Feedback Use the node-voltage method to find the branch currents i1.12, and is in the circuit in (Figure 1) if uy = 40 V and v3 = 75 V Part A Find the current i Express your answer to three significant figures and include the appropriate units. View Available Hint(s) HA ? 0.87 mA Submit Previous Answers X Incorrect; Try Again; 5 attempts remaining Part B Find the current i Express your answer to three significant figures and include the appropriate units. View Available Hint(s) HA ? Value Units Submit Part C Figure < 1 of 1 Find the current is Express your answer to three significant figures and include the appropriate units. View Available Hint(s) 1 ko HA ? 10 mA 5k Value Units vo 1.500 ξ4 ΚΩ U3 Submit

Answer 1

HERE IS THE SOLUTION

il IK 5K TiOmA an D500 4K 7s|iz 5-102 40 let the voltage at Point A lis VA So, now applying KCL at Point A we will get, -1; + ia +10mA + VA-75 103 40-VA SC VA 500 + VA-75 5x103 103 50, i,- SO, VA = 22-8125 V 40- 22 8125 58103 = 0·0034A = 34mĄ

22.8125 iz = 500 = 0·0456A - 45'6mA Now Calculating iz here curren through 75 4x103- 4X103 SQ 13-10- + 228125 – 75 103 - 0'06093 A - 60.93 MA

ATTACHING SIMULATION FOR ANSWE VERIFICATION

3.44 mA OV 40 V 40 V 3.44 mA OXS 45.6 mA 500 Q 22.8 v 10 mA 52.2 mA VYT 18.8 ma 4 ΚΩ 75 V 60.9 mA +++i 75 V