Free online courseMagnets, Magnetism and Charges

Course Description

Embark on an enlightening journey into the fascinating world of magnets, magnetism, and charges with the course "Magnets, Magnetism and Charges." With a duration of 3 hours and 21 minutes, this comprehensive course is tailored to lay down the fundamental principles of magnetism in a simplified and structured manner. Belonging to the category of Basic Studies and positioned within the subcategory of Physics, this course offers a deep dive into the fundamental concepts and intriguing phenomena associated with magnetic fields and forces.

The course initiates with an introduction to magnets, laying the foundational understanding needed to grasp the subsequent, more complex concepts. You will gain insight into why magnets exhibit magnetic properties, delving into an explanation that unpacks the underlying science behind magnetism. From there, the focus shifts to the magnetic field generated by a current-carrying wire, elucidating the principles and calculations needed to comprehend this essential phenomenon.

Building on these basics, the course moves forward to explain the magnetic field of a coil, supplemented with practical example calculations to solidify your understanding. As you progress, you will encounter the Lorentz Force, a pivotal concept in magnetism, and learn to apply the Right Hand Rule to determine the direction of magnetic forces on charged particles. Detailed explanations and example problems pave the way for a thorough grasp of the forces at play.

Further exploration of the Lorentz Force encompasses calculations of the magnetic force on charged particles and a deep dive into the behavior of these particles in magnetic fields. You will also learn how the Lorentz Force affects current-carrying wires, providing a comprehensive understanding of forces due to parallel wires with currents in the same or opposite directions.

The course doesn't stop at static principles. It progresses to dynamic applications, such as the Motor Principle and Simple DC Motors, offering a hands-on guide to constructing a DIY electromagnetic train using just a battery and two magnets. This practical application underscores the real-world relevance of magnetic principles and enhances conceptual understanding through tangible experimentation.

To add further depth, the course includes explanations and example problems related to the Velocity Selector and Mass Spectrometer, illustrating how these devices utilize magnetic fields for their operation. Additionally, there's a unique interlude with "Imagine" by John Lennon performed by Light in Babylon, emphasizing the universal allure of scientific discovery blended with artistic inspiration.

Finally, the course culminates with a detailed analysis of the superposition of magnetic fields, presented through multiple examples to ensure a robust comprehension of this advanced topic. Through a methodical, step-by-step approach, this course promises to demystify the intricacies of magnetism and charges, equipping you with the knowledge and skillset to navigate the magnetic phenomena that govern the physical world.