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## Basic laws of electric circuits

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The book chapter presents the basic laws of electric circuits by considering: power and energy; Kirchhoff's voltage law; Kirchhoff's current law and voltage sources and current sources.

Chapter Contents:

• 2.1 Power and energy
• 2.1.1 Work
• 2.1.2 Energy
• 2.1.3 Power
• 2.1.4 Electric power
• 2.1.5 The reference direction of power
• 2.2 Kirchhoff's voltage law
• 2.2.1 Closed-loop circuit
• 2.2.2 Kirchhoff's voltage law (KVL) # 1
• 2.2.3 Kirchhoff's voltage law (KVL) # 2
• 2.2.4 Experimental circuit of KVL
• 2.2.5 KVL extension
• 2.3 Kirchhoff's current law
• 2.3.1 Kirchhoff's current law (KCL) # 1
• 2.3.2 Kirchhoff's current law (KCL) # 2
• 2.3.3 Physical property of KCL
• 2.3.4 Procedure to solve a complicated problem
• 2.3.5 Supernode
• 2.3.6 Some important circuit terminologies
• 2.4 Voltage source and current source
• 2.4.1 Ideal voltage source
• 2.4.2 Real voltage source
• 2.4.3 Ideal current source
• 2.4.4 Real current source
• Summary
• Practice problems

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