How Magnets Work: Visual Guide to Magnetic Attraction #111194 (License: Personal Use)

This cartoon-style illustration shows a red-and-silver U-shaped (horseshoe) magnet with its north and south poles attracting three metallic nails. The visual emphasizes the concentration of magnetic field lines at the poles, where the force is strongest. It’s commonly used to teach basic electromagnetism concepts in physics education.

Used in educational websites, science blogs, and classroom materials to explain magnetic fields, polarity, and ferromagnetism; matches user intent for learning or teaching foundational physics principles.