query: Random question about magnetic fields and relative movement
positive_passages.docid: 338
positive_passages.text: How do moving charges produce magnetic fields?
negative_passages.docid: 26335
negative_passages.text: How exactly do objects move
negative_passages.docid: 34257
negative_passages.text: No magnetic field from a static charge - Is there a simple physical argument to show why?
negative_passages.docid: 45875
negative_passages.text: A question about earth ground and current loop
negative_passages.docid: 19380
negative_passages.text: The equivalent electric field of a magnetic field
negative_passages.docid: 49405
negative_passages.text: Can we calculate the magnetic field of a permanent magnet?
negative_passages.docid: 137812
negative_passages.text: Why does magnetic force vary in proportion to the cube of the distance instead of the square?
negative_passages.docid: 136921
negative_passages.text: Is the Lorentz force expression valid for magnetic field created by a magnetic monopole?
negative_passages.docid: 52102
negative_passages.text: Do electrostatic fields really obey "action at a distance"?
negative_passages.docid: 84827
negative_passages.text: Why is the magnetic field of a spherically symmetric current zero?
negative_passages.docid: 78258
negative_passages.text: How Special Relativity causes magnetism
negative_passages.docid: 52053
negative_passages.text: Does a magnetic field do work on an intrinsic magnetic dipole?
negative_passages.docid: 48013
negative_passages.text: What is the mechanism by which magnetic fields do work?
negative_passages.docid: 24488
negative_passages.text: What's the difference between magnetic fields $H$ and $B$?
negative_passages.docid: 30286
negative_passages.text: Perfect conductor and magnetic field
negative_passages.docid: 74848
negative_passages.text: Is there any example where electric and magnetic fields are not perpendicular?
negative_passages.docid: 114225
negative_passages.text: If movement is relative, why is it said that moving objects have kinetic energy?