Скачать или смотреть Electrostatic || class 11 || coulomb's law || relative Permittivity

📘 Chapter: Electrostatics – Class 11 (Part 02)

🔍 Covered Topics:

10.4 Coulomb’s Law:
Force between two point charges in vacuum or air.
Importance and applications of the law.

10.4.1 Scalar Form of Coulomb’s Law:
Formula: F = k * (q1 * q2) / r²
Meaning of each term
SI Units and dimensional formula

10.4.2 Relative Permittivity or Dielectric Constant:
Definition and symbol (εr)
Effect of medium on force
Values of εr for common materials (air, water, glass etc.)

10.4.3 Definition of Unit Charge from Coulomb’s Law:
How 1 Coulomb is defined
Force between 1 C charges placed 1 meter apart in vacuum

💡 Key Highlights:
✅ Easy Explanation with diagram
✅ Derivation step-by-step
✅ Suitable for Board + NEET/JEE preparation
✅ Notes included for revision

🧑‍🏫 Presented By:
Experienced Physics Faculty
Concept clarity ensured with examples

🎯 Best For:
Class 11 CBSE / Maharashtra Board / State Boards
JEE, NEET, CET aspirants
Students needing strong concept foundation

📝 Tips:
Practice numericals from NCERT
Memorize formulae and units
Focus on concept of "medium effect" in force

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