2 Problem 4: Refer to Figure 4. Assume that every edge in this circuit is a 1 Ohm resistor except for the edge between the nodes 1 and 2, which is a 1V voltage source, positive at node 2. The goal is to analyze this circuit using loop current analysis method. (a) Mark your loop current unknowns clearly on the circuit (b) Write the minimum number of appropriate KVL equations needed to solve for the unknowns (c) Collect them into a matrix form (d) Solve the equations from part (c) and obtain nu- merical values for the loop currents. Note: Feel free to use calculators or computers or on-line software or apps for any required matrix inversions. 1 15 3 4 Figure 4 (6 + 12 + 3 + 4 = 25 points) Solution: 2 Problem 4: Refer to Figure 4. Assume that every edge in this circuit is a 1 Ohm resistor except for the edge between the nodes 1 and 2, which is a 1V voltage source, positive at node 2. The goal is to analyze this circuit using loop current analysis method. (a) Mark your loop current unknowns clearly on the circuit (b) Write the minimum number of appropriate KVL equations needed to solve for the unknowns (c) Collect them into a matrix form (d) Solve the equations from part (c) and obtain nu- merical values for the loop currents. Note: Feel free to use calculators or computers or on-line software or apps for any required matrix inversions. 1 15 3 4 Figure 4 (6 + 12 + 3 + 4 = 25 points) Solution