query: Insulation for magnetic fields
positive_passages.docid: 21326
positive_passages.text: Magnetic field insulators
negative_passages.docid: 7753
negative_passages.text: Can a conductor run out of electrons to cancel external electric fields?
negative_passages.docid: 26568
negative_passages.text: Electromagnetic fields vs electromagnetic radiation
negative_passages.docid: 114504
negative_passages.text: Ohmic Heating in Wires
negative_passages.docid: 156570
negative_passages.text: Variations of earth's magnetic field strength
negative_passages.docid: 8786
negative_passages.text: Mechanism by which electric and magnetic fields interrelate
negative_passages.docid: 78372
negative_passages.text: Work is not done by the magnetic field?
negative_passages.docid: 120398
negative_passages.text: Direction of H and B inside and outside a bar magnet
negative_passages.docid: 54316
negative_passages.text: About some properties of composites of field extesions
negative_passages.docid: 51088
negative_passages.text: Magnetic Flux conservation
negative_passages.docid: 338
negative_passages.text: How do moving charges produce magnetic fields?
negative_passages.docid: 110379
negative_passages.text: Why do magnetic field field lines behave the way they do?
negative_passages.docid: 106964
negative_passages.text: High voltage transmission, transformers and Ohm's law
negative_passages.docid: 24488
negative_passages.text: What's the difference between magnetic fields $H$ and $B$?
negative_passages.docid: 101261
negative_passages.text: Magnetic Potential Energy
negative_passages.docid: 13693
negative_passages.text: Post Problem Analysis - Rod in a cylindrical time varying magnetic field?
negative_passages.docid: 56198
negative_passages.text: Magnetic Field in the presence of a conductor