Timeline for Magnetic Force Confusing Paradox
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| Apr 13, 2017 at 12:39 | history | edited | CommunityBot |
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| Aug 26, 2015 at 20:29 | comment | added | Ján Lalinský | @MohammadAbid, indeed that answer was not entirely right. The thing is the work on the wire is done by internal forces, electrons do work on the atomic lattice, external magnetic field just enables this, just as normal force enables us to rise in gravitational field, but the work is done by internal forces in human body. Check out my answer here: physics.stackexchange.com/questions/195032/… | |
| Aug 24, 2015 at 18:23 | answer | added | Mohammad Abid | timeline score: 0 | |
| Aug 24, 2015 at 17:04 | answer | added | anna v | timeline score: 1 | |
| Aug 24, 2015 at 15:19 | comment | added | Mohammad Abid | The answer there is also not clear. ''The above explanation does not seem correct to me now, because one can extract work from the system of current carrying conductors very slowly, in which case the induced electric field will be negligible, while the force doing work is still great and given by the formula like ∫j1×B2d3x. Please remove the green sign of acceptance. The real answer to your question requires more insight'' this is what he mentions in the answer. | |
| Aug 24, 2015 at 14:24 | comment | added | Alfred Centauri | Related: physics.stackexchange.com/q/108992/9887 | |
| Aug 24, 2015 at 13:27 | history | edited | ACuriousMind♦ | CC BY-SA 3.0 |
Don't scream.
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| Aug 24, 2015 at 11:01 | comment | added | Mohammad Abid | cant the electrons exert a force on the walls the wire, which could lift the wire? | |
| Aug 24, 2015 at 10:44 | comment | added | Alfred Centauri | Mohammad, the magnetic force on a charged particle is always perpendicular to the particle's velocity so the work done by the magnetic force on a charged particle must be zero. But note that, in the wire, the mobile electrons aren't free to, .e.g., execute circular motion in a uniform electric field, but are constrained by the surface of the wire. Consider the implication of that. | |
| Aug 24, 2015 at 10:15 | comment | added | Mohammad Abid | Im sorry i dont get ur point | |
| Aug 24, 2015 at 9:56 | comment | added | HolgerFiedler | A constant - not varying in time - magnetic field doesn't do any work except the work done similar to a spring. So if one switch on the current in both wires a time varying magnetic field do work on both wires. After the electric currents get constant, the magnetic fields get constant too. | |
| Aug 24, 2015 at 8:06 | history | asked | Mohammad Abid | CC BY-SA 3.0 |