Question

What does positive and negative sign of potential convey?

Answer 1

Answer:

A positive electrostatic potential at some point means that a positive (negative) charge at that point will have a higher(lower potential energy compared to the reference point.

A negative potential means that a positive (negative) charge at that point will have a relatively lower ( higher) potential energy.

Answer 2

The positive sign of potential states that work has to be done on the positive test charge against the repulsive force due to the positive charge in bringing it from infinity. Negative sign of potential states that the work done on the negative test charge is due to the attractive force.