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

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 ( V B - V A)

Tardigrade Admin · Accepted Answer

if we assume it is work done against electrostatic force

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

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

The Gauss law can be used to calculate the field distribution around an electric dipole

If the electric field between two point charges is zero somewhere, then the sign of the two charges is the same.

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 $(V_{B} - V_{A})$

if we assume it is work done against electrostatic force

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

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

The Gauss law can be used to calculate the field distribution around an electric dipole

If the electric field between two point charges is zero somewhere, then the sign of the two charges is the same.

The work done by the external force in moving a unit positive charge from point A at potential VA​ to point B at potential VB​ is (VB​−VA​)

if we assume it is work done against electrostatic force

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

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 $(V_{B} - V_{A})$