On a surface I have two point charges Qa and Qb, 1C and 4C respectivly and are placed at A(-3,0) B(3,0). Find all the points (locus) (except those that are too far away) where V=0.?
1 Answer
Aug 4, 2018
Technically, no such locus exists.
Explanation:
Assuming V stands for the total electric potential, then there is no answer to this question unless one of the charges is negative.
The total electric potential V at any point (x,y) is:
where
Since
Hence, there is no solution to your question unless one of the charges is negative. Then
or
Then you can solve the equation above for the locus by setting