2.3: Kirchhof's Current Law

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Learning Objectives

After completing this chapter, you should be able to:

Identify parallel resistive circuits that include a single voltage source or one or more current sources.
Compute equivalent resistance of parallel resistive networks.
Determine the equivalent of multiple parallel current sources.
Compute component and total current for parallel resistive networks.
Compute system voltage and component powers for parallel resistive networks.
Utilize Ohm's law, Kirchhoff's current law (KCL) and the current divider rule (CDR) to aid in the analysis of parallel resistive circuits.
Describe the function of fuses and circuit breakers.

2.3.1: Introduction
2.3.2: The Parallel Connection
2.3.3: Combining Parallel Components
2.3.4: Kirchhoff's Current Law
Just as Kirchhoff's voltage law is a key element in understanding series circuits, Kirchhoff's current law (KCL) is the operative rule for parallel circuits. It states that the sum of all currents entering and exiting a node must sum to zero. Alternately, it can be stated as the sum of currents entering a node must equal the sum of currents exiting that node.
2.3.5: Parallel Analysis
2.3.6: Current Limiting - Fuses and Circuit Breakers
2.3.7: Summary
2.3.8: Exercises

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