Hulot's team argues that the growth of these reversed patches, presumably eddies that are working against the primary motion of the core, can explain the current decline in the dipole field.
22.
If space were a vacuum, then the Sun's 10 " 4 tesla magnetic dipole field would reduce with the cube of the distance to about 10 " 11 tesla.
23.
Also, noting the local intensity of the dipole field ( or its fluctuation ) is insufficient to characterize Earth's magnetic field as a whole, as it is not strictly a dipole field.
24.
It was conjectured that the nucleus of an atom, embedded in the near field of a laser-driven coherently-oscillating electron cloud would experience a larger dipole field than that of the driving laser.
25.
THIS movement is the rotation of the field . " Anyone who understands electromagnetism can see that this is a nonsensical description of an essentially static dipole field such as the Earth's.
26.
Far away from a magnet, the magnetic field created by that magnet is almost always described ( to a good approximation ) by a dipole field characterized by its total magnetic moment.
27.
Also, noting the local intensity of the dipole field ( or its fluctuation ) is insufficient to characterize Earth's magnetic field as a whole, as it is not strictly a dipole field.
28.
The response conditions for inductively coupled HF RFID tags and coil antennas in magnetic fields appear better than for UHF or SHF dipole fields, but then distance limits apply and may prevent success.
29.
An unpaired electron has a magnetic dipole moment, while an electron pair has no dipole moment because the two electrons have opposite spins so their magnetic dipole fields are in opposite directions and cancel.
30.
Formally, the field can be expressed as a multipole expansion : A dipole field, plus a quadrupole field, plus an octopole field, etc . in the Amp�re model, but this can be very cumbersome mathematically.
