Electromagnetic Theory Lesson 8 (v2) Coulomb's Law & Electric Field скачать в хорошем качестве

Electromagnetic Theory Lesson 8 (v2) Coulomb's Law & Electric Field

In this lesson we introduce the two foundational concepts of electrostatics: Coulomb's Law and the Electric Field. We derive the vector force between point charges, work through a numerical example, define the electric field as force per unit charge, show how it reduces to Q/(4πε₀r²) for a point charge, and apply the superposition principle with a two-charge example. Timestamps: 0:00 Intro 0:03 Recap & This Lesson 0:28 Coulomb's Law & Worked Example 2:01 The Electric Field & Superposition Example 4:05 Summary Topics covered: Coulomb's Law: F₁₂ = (q₁q₂)/(4πε₀R²) ê_R — vector form Permittivity of free space ε₀ and Coulomb constant k ≈ 9×10⁹ N·m²/C² Like charges repel, opposite charges attract Worked example: F between +3μC and −2μC separated by 4 m Electric field definition: E = F/q → E = Q/(4πε₀r²) ê_r E points radially outward for Q › 0, inward for Q ‹ 0 Superposition: E_total = Σ E_i — vector sum of individual fields Example: net E from two equal +1μC charges — symmetry cancellation This video is part of the AcEdumy Electromagnetic Theory series. #ElectromagneticTheory #CoulombsLaw #ElectricField #Superposition #Electrostatics #PointCharge #Engineering #AcEdumy