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09 January 2011

Multiple Choice poll: electric field due to point charges

The poll on the left is based on a picture from Serway.  I've changed it a bit, and not just so the Serway Lawyers don't come after me -- I've made the question more conceptual than mathematical.  Go ahead and vote.  I'll post results next weekend, along with a discussion of the change I made and why I made it.

FYI, my AP class has just begun studying electric fields due to point charges.  This is their first homework problem, with the request for a justification of the answer, of course.


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