NEETPhysicsElectrostatics
Consider the following statements about electric dipoles and electric fields: Statement-I: The electric field at a point on the axial line of an electric dipole is directed along the dipole moment vector. Statement-II: The electric field at a point on the equatorial line of an electric dipole is directed opposite to the dipole moment vector. Statement-III: The torque acting on an electric dipole in a uniform electric
Options
- AAll four statements are true.
- BStatement-I, Statement-III, and Statement-IV are true; Statement-II is false.
- CStatement-I, Statement-II, and Statement-III are true; Statement-IV is false.
- DStatement-II and Statement-IV are true; Statement-I and Statement-III are false.
Correct answer
C. Statement-I, Statement-II, and Statement-III are true; Statement-IV is false.
Step-by-step solution
- Statement-I: This is true. The electric field at a point on the axial line of a dipole is along the direction of the dipole moment. - Statement-II: This is true. The electric field at a point on the equatorial line of a dipole is directed opposite to the dipole moment vector. - Statement-III: This is true. The torque ( ) acting on a dipole in a uniform electric field is given by: ( =p E ) - Statement-IV: This is false. The potential at a point on the equatorial line of a dipole is not zero, but it is given by: (V