Explore the fundamental concepts of electromagnetism in this 22-minute lecture covering EMF, resistance, and Ohm's Law. Delve into battery basics, understand the principles of electromotive force and potential difference, and examine the dimensions and materials that affect electrical resistance. Learn about resistivity and apply your knowledge to solve an example problem. Gain a solid foundation in college-level physics through this concise yet comprehensive lesson from Spahn's Science Lectures.