Question

two charges q1 and q2 separated by a small distance a satisfy the equation q1+q2=0. what does it tell about the charges.

Answer 1

The sum of 2 charges can be Zero if and only if they are of same magnitude BUT of opposite signs.

Thus here  |q1| = |q2| and one of them is +ve and other one is -ve

Answer 2

Answer: The correct answer is "Given charges are an equal and opposite".

Explanation:

In the given problem, two charges q1 and q2 separated by a small distance a satisfy the equation $q_{1}+q_{2}=0$.

Rearrange the above expression as:

$q_{1}=-q_{2}$

These charges are equal in magnitude but having an opposite charges. The net charges is zero of the given configuration. It means that the given charges are an equal and opposite.