Item 1 Learning Goal: Review To use the node-voltage method to solve circuits that contain resistors and independent sources The node-voltage method is a general technique for solving circuits. Fundamentally, it involves writing KCL equations at each node. A node is a point at which two or more circuit elements are joined together. In this tutorial, you will use the node-voltage method to find the current through the voltage source, f., and the voltage drop across the 5 k resistor, . for the circuit shown here 5k0 w 1k0 w 8kQ w 2k0 w Part A Writing KCL equations For the given circut, the node at the bottom of the crout is convenient to use as the reference node. The remaining nodes have been labeled with symbolic voltages. Each labeled voltage indicates the voltage difference between the labeled node and the reference node (eg, -1-0-ty is the voltage drop across the 3 k12 resistor from top to bottom). In this crout, f, 10 mA and 120 V 4 Part A-Writing KCL equations 215 For the given circuit, the node at the bottom of the circuit is convenient to use as the reference node. The remaining nodes have been labeled with symbolic voltages. Each labeled voltage indicates the voltage difference between the labeled node and the reference node (eg., ty-ty-0y is the voltage drop across the 3 k? resistor from top to bottom). In this circuit, i, 10 mA and 120 V 5kQ w 1kQ " 8kQ w w 310 Wite the KCL equation at the node labeled ts by selling the sum of all of the currents leaving the node to zero. Express your answer in terms of 1, 2, and 3, Make sure each term is expressed in amperes. View Available Hint(s) VO AY 11 10 vec 2kQ w Part B Find the KCL equation at the node labeled 2 Write the KCL equation at the node labeled t₂ by setting the sum of all of the currents leaving the node to zero. In this circuit, i, 10 mA and 120 V. 5kQ w +1- 1kQ w 12 8kQ w Vy 3 ΚΩΣ 2kQ w Express your answer in terms of 1, 2, and ts. Make sure each term in your sum is expressed in amperes. View Available Hint(s) ΜΕ ΑΣΦ If vec ? r20 (X)" X-10 -X