There was a request to add some E&M multiple choice questions. Here is a good start:

AP Phy E&M–1993 Multiple Choice Question (36 – 70)

AP Phy E&M — 1998 Multiple Choice Questions (36 – 70)

AP Phy E&M — 2004 ALL Multiple Choice Questions (1-70) 

AP Phy E&M — 2009 All Multiple choice AND Free Response

AP Phy E&M – 2012 AP Physics C Practice Test (skip the mechanics part)

Here are the answers to the 1993 AP Physics C E&M MC

Here are the answers to the 1998 AP Physics C E&M MC

BUT WAIT!  HERE IS A VIDEO SHOWING HOW TO WORK ALL THESE 1998 MC PROBLEMS!

Here are the answers to the 2004 AP Physics C E&M MC

 

Here are the answers to the 2009 AP Physics C E&M MC