Two point charges of unknown magnitude and sign are places at some distance apart. The electric field is zero at a point not between them , but on the line joining the. Write 2 essential conditions for this to happen.
E = q1*q2/(4 * pi * epsilon0 * r2)
The Attempt at a Solution
Since the net field is zero at a point outside the line joining the 2 charges ,
they should be oppositely charged.
So, condition one:
The charges should be oppositely charged .
What would be the second condition?
Any help would be highly appreciated.