Electricity and magnetism
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Public release date: 8-Jun-2011 [ Print | E-mail | Share ] [ Close Window ] Contact: Sathya Achia Abraham sbachia@vcu.edu 804-827-0890 Virginia Commonwealth University RICHMOND, Va. (June 8, 2011) – A team of Virginia Commonwealth University scientists has discovered a new class of 'superatoms' – a stable cluster of atoms that can mimic different elements of the periodic table – with unusual magnetic characteristics. The superatom contains magnetized magnesium atoms, an element traditionally considered as non-magnetic.
Researchers discover superatoms with magnetic shells
In the photograph, note that the coil on the left has fewer coils than that at right (the insets show close-ups). The sketch and circuit show a step-up transformer. To make a step-down transformer, one only has to put the source on the right and the load on the left. ( Important safety note : for a real transformer, you could only 'plug it in backwards' only after verifying that the voltage rating were appropriate.) So, how does s transformer work?
Transformers
Electromagnetic waves
At this point in the course we'll move into optics. This might seem like a separate topic from electricity and magnetism, but optics is really a sub-topic of electricity and magnetism. This is because optics deals with the behavior of light, and light is one example of an electromagnetic wave. Light and other electromagnetic waves Light is not the only example of an electromagnetic wave. Other electromagnetic waves include the microwaves you use to heat up leftovers for dinner, and the radio waves that are broadcast from radio stations.New Explanations, Alternate Mental Toolkit William J. Beaty Electrical Engineer, U. of Washington
