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ECEN 215 -
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ECEN 215, Principles of Electrical EngineeringDr. Mina RahimianLecture# 3 Date: 9/2/13Ex. Write KCL at each node.kCL at a closed boundaryEx. Use the basic laws to find i and check your answer using power balance.To find the voltage from a to b you can choose any Path from a to b and add all voltage in that Path.Chapter 2, Resistive CircuitsEquivalent circuits: Two circuits are said to be equivalent if they have the same v-i characteristics at the specified pair of terminals.Ex. A 12V, 10 W light bulb is connected to a 12V battery with an internal resistance of 2 ohms. What is the voltage across the light bulb?Ex. Design an attenuator circuit to turn on a 5V, 1W light bulb from a 9V
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