Your are encouraged to search on the Internet for interesting, informative, and even entertaining websites related to ODEs and Electric Circuits. Below are some websites that provide information on Differential Equations and applications, including electrical circuits, often incorporating illuminating graphics and animations to help you visualize and understand.
http://www.math.duke.edu/education/ccp/materials/diffeq/index.html
http://www.math.ualberta.ca/~ewoolgar/java/Euler/Euler.html
http://www.sci.wsu.edu/idea/current.html
http://www.sci.wsu.edu/idea/favorites.html
http://forum.swarthmore.edu/differential/differential.html
http://www.sosmath.com/diffeq/diffeq.html
http://www.sosmath.com/diffeq/first/application/radioactive/radioactive.html
http://ciips.ee.uwa.edu.au/~webmmit/Transforms/node45.html
http://java.math.rpi.edu/devmodules/electromagnetism/ResCap/index.html
http://www.ece.umd.edu/courses/enee204.S99/chap8/Lecture_25/ppframe.htm
http://www.math.vt.edu/people/hoggard/links/new/IDX.html
http://www.phys.ualberta.ca/~gingrich/phys395/notes/node28.html#SECTION00324000000000000000