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Results tagged with electromagnetism
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user 211658
The classical theory of electric and magnetic fields, both in the static and dynamic case. It also covers general questions about magnets, electric attraction/repulsion, etc. Distinct from electrical-engineering.
1
vote
Accepted
How does an electrical field influence a changing magnetic field?
With the copper capsule, the chages in the magnetic filed induces an electric filed in the copper, which drives a current in the copper such that the current induces a magnetic filed opposing the orig …
- 1,192
1
vote
Accepted
Spherical Electromagnet Formed By Six Coils For Plasma Containment and Nuclear Fusion
I think you might still have a problem of plasma leaking from the moving opening. Think of the magnetic containment of the plasma sort of like a balloon:
Intuitively, if you had a balloon with a hole …
- 1,192
25
votes
Accepted
Earth magnetic field space elevator. No cable
Setting aside the technical details, the biggest problem with this idea would be Earnshaw's theorem, stating that it is impossible to stably levitate a magnetic dipole in another magnetic dipole's (Ea …
- 1,192