Posted by Madiason on Saturday, February 18, 2012 at 6:50pm.
A 3.10μC and a 1.91 μC charge are placed 3.56 cm apart.At what points along the line joining them is the potential zero?
I calculated one point to be 2.20cm but I don't know how to get the other point.

Physics  bobpursley, Saturday, February 18, 2012 at 8:43pm
What about infinity?

Physics  Anonymous, Tuesday, February 21, 2012 at 11:39am
Infinity is incorrect. How does that even make sense there? Switch the signs in your denominator