Question

Which of the following statement(s) is/are correct?

• A. If the electric field due to a point charge varies as $r^{-2.5}$ instead of $r^{-2}$, then the Gauss law will still be valid
• B. The Gauss law can be used to calculate the field distribution around an electric dipole
• C. If the electric field between two point charges is zero somewhere, then the sign of the two charges is the same.
• D. The work done by the external force in moving a unit positive charge from point $A$ at potential $V _{ A }$ to point $B$ at potential $V _{ B }$ is $\left( V _{ B }- V _{A}\right)$

Answer 1

Answer: (C), (D)

if we assume it is work done against electrostatic force