%0 Journal Article
%T Characteristics of and Control over Resonance in the Electromotive Force of Electromagnetic Induction
%A Sang Don Bu
%A Jin Kyu Han
%A Jin Young Hyeon
%A Gi Gwan Kim
%J Journal of Electromagnetic Analysis and Applications
%P 317-321
%@ 1942-0749
%D 2013
%I Scientific Research Publishing
%R 10.4236/jemaa.2013.58049
%X <p class=\"MsoNormal\">
	<span lang=\"EN-US\" style=\"font-family:Verdana;\">The principles of electromagnetic induction are applied in many devices
and systems,</span><span lang=\"EN-US\"> </span><span lang=\"EN-US\" style=\"font-family:Verdana;\">including induction cookers, transformers and wireless energy transfer;
however, few data are available on resonance in the electromotive force (EMF)
of electromagnetic induction. We studied electromagnetic induction between two
circular coils of wire: one is the source coil and the other is the pickup (or
induction) coil. The measured EMF versus frequency graphs reveals the existence
of a resonance/anti-resonance in the EMF of electromagnetic induction through
free space. We found that it is possible to control the system¡¯s resonance and
anti-resonance frequencies. In some devices, a desired resonance or antiresonance
frequency is achieved by varying the size of the resonator. Here, by contrast,
our experimental results show that the system¡¯s resonance and anti-resonance
frequencies can be adjusted by varying the distance between the two coils or
the number of turns of the induction coil.</span> 
</p>
%K Electromagnetic Induction
%K Electromotive Force
%K Resonator
%K Resonance/Anti-Resonance Frequency
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=35486