Statement I: No work is required to be done to move a test charge between any two points on an equipotential surface.

Statement II: Electric lines of force at the equipotential surfaces are mutually perpendicular to each other.

Statement I is true, Statement II is true, Statement II is the correct explanation of Statement I

Statement I is true, Statement II is true, Statement II is not the correct explanation of Statement I

Statement I is false, Statement II is true

Statement I is true, Statement II is false