Coulomb's Law in vector form | Why Direction matters | Unit vector | Easy explanation | Concept |

Coulomb's Law in Vector Form ⚡ In this video, we go beyond the basic magnitude formula and learn Coulomb's law in vector form, which tells us not just how strong the electric force is, but also its direction. The formula: F₁₂ = k (q₁q₂ / r²) r̂₁₂ where: F₁₂ = force on charge q₁ due to charge q₂ k = 9 × 10⁹ N·m²/C² (equal to 1/4πε₀) q₁, q₂ = the two point charges r = distance between them r̂₁₂ = unit vector pointing from q₂ toward q₁ Key points covered: Why force is a vector and needs direction What the unit vector r̂ means and how to find it Like charges repel, unlike charges attract (and how the sign of q₁q₂ shows this) Newton's third law here: F₁₂ = −F₂₁ Solved example for MDCAT and board exams 📌 Useful for MDCAT, 1st-year Physics, and Balochistan Board students. 👍 Like, share, and subscribe to Physics with Momin khan for more physics concepts and practical videos! #CoulombsLaw #Physics #MDCAT #ElectricForce #VectorForm #PhysicsWithMominKhan #physics #electrostatics #basic ‪@PhysicsWallah‬ ‪@PhysicswithMuhammadArafatkhan‬ ‪@lecturesbywalterlewin.they9259‬ ‪@PhysicsInSeconds‬ ‪@theory_of_physics‬ ‪@FoundationPhysicsRezaAhmed‬ ‪@Physics‬ ‪@khanaca‬