Re: electrostatic confusion

From: CWatters (colin.watters_at_pandoraBOX.be)
Date: 02/27/05 

Date: Sun, 27 Feb 2005 09:37:55 GMT

"John O'Flaherty" <quiasmox@yahoo.com> wrote in message
news:38dcaiF5m0v24U1@individual.net...
> > But the book gives 2.5 kN/m as the answer to (b). Can anyone show me
> where I'm going wrong?

See if this thread helps...

http://www.edaboard.com/viewtopic.php?p=404849

If I understand it correctly...

The force on a charge in a uniform field is F=EQ however in your case the
field isn't uniform it's on "one side" of the charge so F = E*Q/2

Sorry if that's not a very satisfactory explanation.