Menu (linked Index) Capacitance Last Update: September 21,2025 Introduction Capacitance Equation Derivation Introduction Capacitors are fundamental electronic components that store electrical energy. In a simple parallel-plate capacitor, this energy is stored in an electric field between two conducting plates. This blog post will explore the core principles behind capacitors, showing how the charge (Q) stored […]
Menu (linked Index) Electric Field of a Charged Infinite Plane Last Update: September 20, 2025 Introduction Computation Set Up Equation Development Integration Appendix 1: Symmetry in a Uniformly Charged Plane Appendix 2: Coulomb’s Law Introduction The magnitude of the electric field E of a uniformly charged infinite plate (plane) is Total E = 2(k)(π)(σ) = (σ)/(2εo) =
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Menu (linked Index) Current and Magnetic Field Right Hand Rule Examples Last Update: September 17,2025 Introduction Right Hand Rule Shape of a Magnet’s Field Straight Vertical Wire Coil of Wire Simple Electric Circuit Multiple Coiled Circuit Introduction An electric current produces a magnetic field around it. Picture: Current Flowing in a Wire Produces a Magnetic
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Menu (linked Index) Faraday’s 1831 Electromagnetic Experiments Last Update: September 14, 2025 Introduction Iron Ring Experiment (1831) V-Magnet Experiment (1831) Magnet and Coil Experiment (1831) Introduction We know today that a changing magnetic field can induce an electric current. Michael Faraday, in a series of experiments in 1831, discovered this phenomenon of Electromagnetic Induction. Electromagnetic
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Menu (linked Index) Magnetic Force on a Current Carrying Wire Last Update: September 3, 2025 Introduction The Lorentz Force Equation Example: Magnetic Force on a Current Carrying Wire Summary Introduction A wire carrying current creates a magnetic field. This magnetic field exerts a force on a magnet carrying compass. Newton’s Third Law says that “for
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Menu (linked Index) Lorentz Force Law Last Update: September 1, 2025 Introduction Vector Cross Product Rules and Conventions Force on a Charge in an Electric Field Force on a Moving Charge in a Magnetic Field Lorentz Force Law Introduction The Lorentz force is the total force exerted on a charged particle that’s moving through a
The Best On-Line Teachers Last Update: August 31,2025 As I write my mostly STEM-related blog posts, I utilize a lot of great online information. Below is a curated, alphabetical, evergreen list of the best teachers I’ve watched and read. Ali Alqaraghuli Ali the Dazzling https://www.youtube.com/@alithedazzling Matt Anderson Physics with Professor Matt Anderson High school through
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Menu (linked Index) Biot Savart Law and Ampère’s Law Last Update: August 30, 2025 Introduction B Based on Moving Point Charge Current I in Terms of Drift Velocity Biot-Savart Law Derivation Biot-Savart Law on a Long Straight Wire B on a Closed Circular Loop Around a Wire with Current B on a Closed Loop Around
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Menu (linked Index) Gauss’s Law of Electricity (of the Electric Field) Last Update: August 22, 2025 Introduction Water Flow Analogy for Electric Flux General Form of Uniform Electric Flux through A Flat Surface Flux of a Non-Uniform Electric Field through an Irregular Surface Area Vectors Electric Flux Definition Using the Area Vector Gauss’s Law of
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Menu (linked Index) From Maxwell’s Equations to The Wave Equation Last Update: August 20, 2025 Introduction Gradient , Diversion, and Curl Maxwell’s Equations The Wave Equation Deriving the B and W Wave Equations Appendix 1 Appendix 2 Appendix 3 Introduction James Clerk Maxwell (1831–1879) was a Scottish physicist known for his groundbreaking work in electromagnetism.
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