Timeline for Why is the curl of magnetic field $0$ outside the conductor and non-zero inside?
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| Jan 13, 2021 at 17:58 | comment | added | nasu | It will rotate with the general circular flow but this is not what the curl describes. You should fix the center of the paddle in one point and see if it spins around that point. The curl is a local quantity. Your intuition is more related to the line integral around a macroscopic loop rather than the curl. | |
| Jan 13, 2021 at 14:28 | comment | added | Clone | Thank you for your reply! I was thought that curl is non-zero if you place a water paddle at a point (using fluid flow analogy) and if that paddle would rotate. So if I place a water paddle at the point where the wire would be it should rotate in the same direction as the B field in the picture, right? But that paddle would also rotate if I would put it outside the wire, wouldn't it? | |
| Jan 13, 2021 at 14:21 | history | answered | BioPhysicist | CC BY-SA 4.0 |