Properties of Magnetic Field Lines | Forces on Parallel Conductors | Lecture 3 | 10th Class Physics

In this Lecture 3 of Chapter 17 – 10th Class Physics, we study the Properties of Magnetic Field Lines and the Forces on Parallel Current-Carrying Conductors. In this lecture, you will learn: Properties of magnetic field lines Magnetic field lines around a bar magnet Why magnetic field lines never intersect Relationship between field-line spacing and magnetic field strength Right-Hand Grip Rule Magnetic field around a current-carrying conductor Forces between parallel current-carrying conductors Attraction between parallel currents in the same direction Repulsion between currents in opposite directions This lecture is designed according to the 10th Class Physics syllabus and is useful for concept preparation, board examinations, numerical problems, and physics revision. 📌 Chapter 17: Electromagnetism 📌 Lecture 3 📌 Topic: Magnetic Field Lines & Forces on Parallel Conductors 📌 Class: 10th Class Physics Subscribe to BFA Academy / Physics Insights for more Physics lectures, concepts, numerical problems, short questions, and exam preparation. #10thClassPhysics #MagneticField #Electromagnetism PHYSICS LECTURES (9TH + 10TH) #PHYSICS #PHYSICS_LECTURES #EDUCATION #10TH_CLASS #NEW_SYLLABUS_2026 #BISE_LAHORE_SYLLABUS