Electric field | Electric field intensity | Made easy | 2nd year | Concept | Physics | Momin khan#

⚡ In this video, we explain Electric Field and Electric Field Intensity from the basics, with concepts, formulas, field line patterns, and numerical problems. It is useful for Intermediate (1st/2nd year) students and for MDCAT, ECAT, and other entry test preparation. 🔹 What you will learn: What is an electric field and why do we need the concept? The idea of a "test charge" and why it must be very small Definition of electric field intensity (E) Formula: E = F/q₀ Electric field due to a point charge: E = kQ/r² = Q / 4πε₀r² SI unit of electric field intensity: N/C (or V/m) Electric field intensity is a vector quantity, so its direction matters Direction of the field: away from a positive charge, toward a negative charge Electric field lines and their properties: They start from positive charge and end on negative charge They never cross each other Closer lines mean a stronger field The tangent at any point gives the direction of the field Field patterns of a single charge, two opposite charges (dipole), and two like charges Uniform electric field between two parallel plates Force on a charge in an electric field: F = qE Solved numerical problems 📌 Key formulas: E = F / q₀ E = kQ / r² F = qE k = 9 × 10⁹ N·m²/C² 🎯 Important for exams: Definition of electric field intensity Difference between electric field and electric force Properties of electric field lines Numericals on E = kQ/r² and F = qE 📚 Related videos on the channel: Coulomb's Law Effect of Medium on Coulomb's Force Static Electricity / Electroscope Practical 👍 If this video helped you, like, share, and subscribe to Physics with Momin Khan for more concept-based physics lectures and practical demonstrations. 💬 Have a question or a topic request? Write it in the comments and I will try to cover it in a coming video. ⏱️ Timestamps (update these to match your video): 00:00 Introduction 01:00 What is an electric field? 03:00 Test charge 05:00 Electric field intensity and formula 08:00 Field due to a point charge 11:00 Direction of the field 13:00 Electric field lines and their properties 17:00 Field patterns 20:00 Numerical problems 25:00 Summary Tags: electric field, electric field intensity, electric field lines, E = F/q, point charge electric field, physics with Momin Khan, MDCAT physics, ECAT physics, 1st year physics, electrostatics Hashtags: #ElectricField #Physics #MDCAT #Electrostatics #PhysicsWithMominKhan #physics #electrostatics #basic ‪@PhysicsWallah‬ ‪@PhysicswithMuhammadArafatkhan‬ ‪@lecturesbywalterlewin.they9259‬ ‪@PhysicsInSeconds‬ ‪@theory_of_physics‬ ‪@FoundationPhysicsRezaAhmed‬ ‪@Physics‬ ‪@khanaca‬