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ECE 252 (3)
Ruoshi (2)
Lecture 2

# ECE 252 Lecture 2: Class 2 - Lesson 2 Premium

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School
University of Louisville
Department
Electrical and Computer Engr
Course
ECE 252
Professor
Ruoshi
Semester
Summer

Description
May 10th Wednesday, May 10, 2017 11:01 AM Node: A node is a point in a circuit where two or more circuit elements join. Points A, B, C, and D are nodes. Essential Node: An essential node is a point in a circuit where three or more circuit elements join. Points B and D are essential nodes. We usually care more about the essential nodes than about the simple nodes. Branch: A branch is a portion of a circuit that connects two nodes. AB,AD, BD, BC, CD, DAB, and BCD are branches. Essential Branch: An essential branch is a portion of a circuit that connects two essential nodes. BD, DAB, and BCD are essential branches. Loop: A loop is a closed path. ABDA, BCDB, and ABCDA are loops. Mesh: A mesh is a loop with no loops inside it. ABDA and BCDB are meshes. We usually choose to write Kirchhoffs Voltage Law equations for meshes rather than loops. ECE 252 Page 1
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