Question

what does negative gradient of electric potential mean???

Answer 1

Gradient means change. ... The answeris in the direction of most negative potential gradient. In other words in the direction which will minimize itspotential energy the most. E.g. let's say there is a huge positive charge whichis fixed at some point in space.

Answer 2

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.