1. Test 1 - Review ECE 2110 Western Michigan University

2. For the LR circuit solve for the V R2. 1. Start by solving for the impedance (Z) formed by L 1 and R 2. Choose Z 2. Use voltage divider to solve for V R2. Choose V R2

3. Solve for Z TH across AB. 1. What should be done with the voltage source? A A B B Choose the correct circuit

4. Solve for Z TH across AB. 2. Now solve for the impedance (Z) seen at AB? Choose Z TH

5. Nodal Analysis Solve for the node voltage at A. Solve for the impedance Z formed by L 1 and R 2. Solve for the impedance Z formed by L 1 and R 2. Choose Z Write the Node equation at A. Write the Node equation at A. Choose The Node Equation

6. Resistor Man’s love of toaster strudels has lead him to fish out his morning pastry with a metal knife into a poorly insulated toaster. The knife in his right hand touches a metal heating coil at 120v and his left foot is at 0v. 40k  60k  80k  0v 120v 1. Solve for the current through Resistor Man. Choose I

7. A high voltage power line carries 2kA. What is the minimum safe distance to build a house by if the max B-field allowable is 150mG? Choose B-field in Tesla 1. Convert Gauss’ to a unit of Tesla. Choose distance in meters 2. Solve for distance.

8. Z Z Z A N B C An unbalanced three phase load is connected to a 480v at 60Hz. Solve for the line currents through each load and the Neutral. 1. Find the Line to Neutral. Choose Line to Neutral 2. Solve for I A Choose I A