SEARL MAGNETIC LIMITED. DOC-SISRC-SM-SMK-1.
... Searl see the molecules of steel offer a much greater resistance to the influence of a magnetising force than
the molecules of iron Fe 29.
Therefore, Searl sees that steel requires under the influence of a magnet or electric current a longer period of
time than iron Fe 29 before it can be magnetised ...
chapter 6 magnetic compass adjustment
... result of vibration and pounding in varying magnetic fields,
and will eventually reach a more or less stable magnetic
condition. The magnetism which remains is the permanent
magnetism of the ship.
The fact that a ship has permanent magnetism does not
mean that it cannot also acquire induced magnetis ...
Basic Eddy Current Principles
... Now, let’s replace the second coil with a conductive test specimen. When the
specimen is placed near the coil so that the alternating magnetic field intersects
it, a current is induced in the specimen by mutual inductance. The eddy currents
induced in the specimen also produce their own alternating ...
An electromagnetic field (also EMF or EM field) is a physical field produced by electrically charged objects. It affects the behavior of charged objects in the vicinity of the field. The electromagnetic field extends indefinitely throughout space and describes the electromagnetic interaction. It is one of the four fundamental forces of nature (the others are gravitation, weak interaction and strong interaction).The field can be viewed as the combination of an electric field and a magnetic field. The electric field is produced by stationary charges, and the magnetic field by moving charges (currents); these two are often described as the sources of the field. The way in which charges and currents interact with the electromagnetic field is described by Maxwell's equations and the Lorentz force law.From a classical perspective in the history of electromagnetism, the electromagnetic field can be regarded as a smooth, continuous field, propagated in a wavelike manner; whereas from the perspective of quantum field theory, the field is seen as quantized, being composed of individual particles.