interesting study material links.....

http://physics-animations.com/
http://mathworld.wolfram.com/
http://www.furryelephant.com/
http://www.tutorvista.com/content/science/science-ii/electricity/multiple-choice.php
http://science.howstuffworks.com/
http://www.mathworks.in/ 
http://www.acsu.buffalo.edu/~wie/applet/applet.old
http://www.falstad.com/mathphysics.html
www.filehippo.com/
 http://www.presentationpro.com/
http://www.otherpower.com/otherpower_systems.html
http://www.crazyengineers.com/
http://www.indiamart.com/siouxpower/power-system-study.html
 http://www.indiamart.com/siouxpower/power-system-study.html
http://www.ehow.com/info_8781032_iterative-methods-linear-nonlinear-equations.html

http://www.control.com/thread/1267218529

http://electrical-machine-design.blogspot.in/

http://www.scribd.com/doc/50442308/73/Elementary-Concepts

http://illuminations.nctm.org/ActivityDetail.aspx?ID=42