Magnetic Field Lines of a Bar Magnet - Physics Diagram & Explanation #168268 (License: Personal Use)

This educational diagram illustrates the invisible magnetic field surrounding a permanent bar magnet, with field lines shown as dashed purple curves flowing externally from the north (red) pole to the south (blue) pole. Arrows indicate the direction of the magnetic force, and the density of lines reflects field strength, highest near the poles. The symbol Φ denotes magnetic flux through a given area, reinforcing the quantitative aspect of magnetism.

Used in physics textbooks, online learning platforms, and STEM curriculum materials to teach foundational electromagnetism concepts; matches user intent for visual understanding of magnetic fields, pole behavior, and flux.