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Electricity (11/11) – Timeline of Key Developments in Electro Magnetism

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Menu (Linked Index) Electricity (11/11) – Timeline of Key Developments in Electro Magnetism (Electromagnetism). Last Update: January 15, 2026 Introduction Navigation Index to Electrical Timeline of Key Events In the Field of Electromagnetism Recognizing Michael Faraday Recognizing James Clerk Maxwell Development of Electromagnetism Timeline: 2750 BC to 1990s Introduction This is the eleventh installment in […]

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Electric Power Line Structures

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Menu (linked Index) Electric Power Line Structures Last Update: February 12, 2026 Introduction Transmission/Sub-transmission Structures Typical North American Distribution Pole Introduction The electrical grid relies on a specialized hierarchy of structures designed to transport power safely across vast distances and into residential neighborhoods. These structures range from massive steel transmission towers to local wooden distribution

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Maxwell Equations – From Integral to Differential Forms

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Menu (linked Index) Maxwell Equations – From Integral to Differential Forms Last Update: January 22, 2026 Introduction Maxwell’s Equations – References Gauss’s Divergence Theorem and Stokes’s Theorem Maxwell’s Equations: Gauss’s Law for Electric Fields Maxwell’s Equations: Gauss’s Law for Magnetic Fields Maxwell’s Equations: Faraday’s Law Maxwell’s Equations: Ampere – Maxwell Law Summary – Maxwell’s Equations

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Transformers

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Menu (linked Index) Transformers Last Update: January 8, 2026 Introduction Transformer Descriptions Transformers Across the Grid Transformer Governing Equations Transformer Classifications Transformer Characteristics by Grid Level Anatomy of a Residential Pole Transformer How a Pole Transformer Connects to Your House Transformer Size and Rating Appendix 1 – Assumptions for Idealized Transformer Equations Introduction The electrical

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Wye and Delta Three Phase Circuits

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Menu (linked Index) Wye and Delta Three Phase AC Circuits Last Update: January 14, 2026 Introduction Three Phase Electrical Power Generation Phase Meanings Electrical Sources and Loads Wye (Star) 3-Phase Circuit Wye (Star) 3-Phase Circuit Example Delta 3-Phase Circuit Delta 3-Phase Circuit Example Balanced Circuits Wye and Delta Circuit Configurations Along the Grid Appendix 1

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AC Circuits: I-V Relationships, Impedance, Admittance, and Power

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Menu (linked Index) AC Circuit Basics: i-v Relationships, Impedance, Admittance, and Power Last Update: January 14, 2026 Introduction Pure Resistor AC Circuit Pure Inductor AC Circuit Pure Capacitor AC Circuit Pure Inductor and Capacitor Impedance – Frequency Domain Analysis Summary: Pure Element AC Circuits Phasor Basics Series RLC AC Circuits (Voltage → Impedance → Power

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Sine and Cosine – Definitions and Properties

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Menu (linked Index) Sine and Cosine – Definitions and Properties Last Update: December 23, 2025  Introduction History Etymology Unit Circle Trigonometry Sine and Cosine Wave From the Unit Circle Sinusoid Waveform General Characteristics Circular Motion Parameters Phase Angle Expression Using Rotational Kinematics General Equations for Instantaneous AC Voltage and Current Voltage and Current Waveform Characteristics

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