Bullish - Video. Magnetism Experiments: Bar Magnets, Iron Filings & Compass Science. Posted: April 8, 2025 | Last updated: April 8, 2025. The video explains the concepts of magnetic, electric, and ...

A magnetic field is invisible, but it can be detected using a magnetic compass. A compass contains a small bar magnet on a pivot so that it can rotate. The compass needle points in the direction ...