Practice question · Multiple choice
Magnetic field lines always close on themselves while electric field lines begin and end on charges. What does that difference record?
Hints
- Ask what an electric field line starts on.
- What would a magnetic line start on, if such a thing existed?
Show the answer
B. That no magnetic monopole has been found
Why
Closed loops are the geometric expression of no monopoles. Cut a magnet and you get two magnets, never an isolated pole, the field lines have been telling you that all along.
Practise Magnetic Field and Ampere's Law
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