| Equation | In plain English | Real-world example | |----------|----------------|--------------------| | Gauss (E) | Charge → Electric field | Static shock from carpet | | Gauss (M) | No solo north poles | Every magnet has two ends | | Faraday | Changing magnet → Electric field | Power generator | | Ampère-Maxwell | Current or changing E-field → Magnetic field | Electromagnet, radio antenna |
If you only have 5 minutes before your exam or project, memorize this table:
Electromagnetic theory is a fascinating branch of physics that underlies many modern technologies. While it may seem daunting at first, understanding the basics of electric charges, fields, and Maxwell's equations can help you appreciate the beauty and complexity of the electromagnetic world.
unified electricity and magnetism into a single theory using four fundamental equations: NASA Science (.gov) Anatomy of an Electromagnetic Wave - NASA Science
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These four equations predict – which include: