Coulomb's Law Full Explained | Class 12 Physics Ch 1 | Electrostatic Force, Derivation & Questions

📚 Welcome to Adhyatmn Edutech – Your gateway to mastering Physics with Deepak Singh Sir! This is Lecture 4 of Class 12 Physics Chapter 1 – Electric Charges and Fields, where we dive deep into Coulomb’s Law, its derivation, significance, and practical application through solved examples. 🔍 What You'll Learn in This Lecture: ✅ Contact vs Non-Contact Forces ✅ Concept & Nature of Electrostatic Force ✅ Derivation of Coulomb's Law ✅ Explanation of Coulomb’s Constant (k) and ε₀ (Permittivity) ✅ Formula: F = kQ₁Q₂ / r² ✅ SI Units, Vector Nature & MCQs Practice This session lays a strong foundation for your CBSE Board 2025, JEE, and NEET Physics prep. 🧠 Chapter: Electric Charges and Fields 👨‍🏫 Teacher: Deepak Singh Sir 🏫 Class: 12th Physics 🎓 Topic: Coulomb’s Law (Electrostatics) 📍 Lecture 4 🔗 Watch Previous Lectures of This Chapter: ▶️ Lecture 1 – Introduction to Electrostatics:    • Electric Charges & Fields | Class 12 Physi...   ▶️ Lecture 2 – Basic Properties of Electric Charges:    • Electric Charges & Fields – Lecture 2 | Po...   ▶️ Lecture 3 – Force Concepts & Types (Contact/Non-contact):    • Electrification Explained | Conductors, In...   📞 For Admission & Counselling: +91 9928788025 🌐 Follow Adhyatmn Edutech for more Class 12 Physics lectures, JEE/NEET prep, and concept clarity.