Which Maxwell equation expresses the empirical physical fact that magnetic monopoles do not exist in nature?
Answer and explanation
Correct answer: B. Gauss's law for magnetism (div B = 0)
- Step 1: Gauss's law for magnetism states that net magnetic flux through any closed surface is identically zero: integral B . dA = 0 (or div B = 0). Step 2. This implies magnetic field lines form continuous closed loops without isolated sources or sinks (no magnetic monopoles). Answer: Gauss's law for magnetism (div B = 0). Why not the others: Gauss's law for electricity involves electric charges (monopoles exist); Faraday describes induction.
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