<p>Can anyone point me to an online asynchronous multivariable course, to bone up before taking college-level E&M physics? Something with problem sets & answers. Doesn't have to be for-credit. Thanks in advance!</p>
<p>Check MIT’s OCW (open courseware). It’s been a while since my kids were in school when we went through some of the video lectures. They may have something that you’ll find useful.</p>