**Author details**

Kim Ho Yeap1 \* and Kazuhiro Hirasawa<sup>2</sup>

1 Universiti Tunku Abdul Rahman, Jalan Universiti, Bandar Barat, Kampar, Perak, Malaysia

2 Universiti of Tsukuba, Tsukuba, Ibaraki, Japan

\*Address all correspondence to: yeapkimho@gmail.com

© 2019 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

*Introductory Chapter: Electromagnetism DOI: http://dx.doi.org/10.5772/intechopen.85155* 
