# Lecture_5 - Basic Concepts of Network Topology Branch...

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1 BME 311 Network Theory John X.J. Zhang, UT Austin 1 Basic Concepts of Network Topology Branch – represents a single element such as a voltage source or a resistor – two-terminal element Node – the point of connection between two or more branches Loop – any closed path in a circuit BME 311 Network Theory John X.J. Zhang, UT Austin 2 The Fundamental Theorem of Network Topology • A network with b branches, n nodes, and L independent loops will satisfy b=L+n-1 (5=3+3-1)

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2 BME 311 Network Theory John X.J. Zhang, UT Austin 3 Series – Two or more elements are in series if they exclusively share a single node and consequently carry the same current Parallel – Two or more elements are in parallel is they are connected to the same two nodes and consequently have the same voltage across them ? BME 311 Network Theory John X.J. Zhang, UT Austin 4 • Is there a loop? How many nodes and branches are there?
3 BME 311 Network Theory John X.J. Zhang, UT Austin 5 Lumped Circuit Abstraction

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## This note was uploaded on 03/19/2008 for the course BME 311 taught by Professor Zhang during the Spring '08 term at University of Texas at Austin.

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Lecture_5 - Basic Concepts of Network Topology Branch...

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