Reconnexion of lines of force in rotating spheres and cylinders
1966; Royal Society; Volume: 291; Issue: 1424 Linguagem: Inglês
10.1098/rspa.1966.0078
ISSN2053-9169
Autores Tópico(s)Geomagnetism and Paleomagnetism Studies
ResumoA solid conducting sphere or cylinder begins to rotate suddenly from rest in an initially uniform magnetic field. An analytic solution for this problem is obtained and it is shown that lines of magnetic force reconnect to form closed loops during the transient phase. The general behaviour of the system is investigated for all conductivities. Numerical examples are given and approximate expressions derived in the limiting cases of large conductivity and time.
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