T02Example

# T02Example - Example 1(From D2.10 Introduction to...

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Example 1: (From D2.10 Introduction to Electrical Engineering by Irwin) Find the equivalent resistance at the terminal A-B in Fig 1. Answers to Example 1: Combining the 2 and 1 resistors on the right and the two 2 resistors in the middle, we get a simplified circuit as shown on right Further reduce the parallel resistors together we get the reduced circuit 1 6 A B R AB So, we get R AB = 7 6 1 6 3 A B R AB 1 6 1 2 2 6 1 2 A B R AB Fig. 1

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Example 2: (From P2-16, Circuits, Devices and Systems by Smith and Dorf) Find current I in the ladder network of Fig 2 by network reduction. Reduce series and parallel combinations to a single equivalent resistance, find the battery current, then use current division to find I. Answers to Example 2: 4 6 90V 1 3 3 10 I Fig. 2 6 and 4 resistors are in series 10 90V 1 3 3 10 I 10 and 10 resistors are in parallel 90V 1 3 3 5 1 and 5
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