When the angle between the dipole moment and electric field is zero then the potential energy of electric dipole is minimum.
In which situation the potential energy of dipole is maximum and minimum?
Potential energy is maximum when dipole moment is anti parallel the the direction of EF ( condition is called unstable equilibrium ) and minimum when dipole moment is parallel to the EF ( Stable Equilibrium ) .
In which situation stable or unstable equilibrium the potential energy of an electric dipole is minimum?
The moment of the dipole is directed between -ve charge and + charge. Net force and torque on the system should be zero in equilibrium. Therefore, if Potential Energy is high, the equilibrium will be unstable, and equilibrium will be stable for minimum Potential Energy.
What is the value of the minimum potential energy that an electric dipole placed in a uniform electric field can attain?
θ = Angle between dipole axis and electric field. P E is minimum (zero).
Can the potential energy of an electric dipole in an electric field be zero?
The dipole vector points along the line joining the two charges. The potential energy is zero since for a dipole the potential energy is zero at its equatorial plane, and potential energy is nothing but potential × charge.
At what angle potential energy is zero?
When an dipole is placed in a uniform electric field with a angle of 90° or π/2, its potential energy is 0.
What are the points at which electric potential of a dipole has a zero value?
(ii) At equatorial points, the electric potential of a dipole is zero.
What will happen if dipole is kept in non uniform electric field?
If an electric dipole is placed in a nonuniform electric field, then the positive and the negative charges of the dipole will experience a net force. And as one end of the dipole is experiencing a force in one direction and the other end in the opposite direction, so the dipole will have a net torque also.
What is the net force on a dipole in uniform electric field?
Therefore, the net force on the dipole is zero. Even if we change the orientation, the length and the charge of the dipole, the net force on the dipole will be equal to zero. Hence, the electric force on a dipole when it is placed in a uniform electric field is always zero.
When electric dipole is unstable?
(2)When the dipole is aligned anti-parallel to the electric field (i.e. the angle between dipole moment and the electric field is 180o), then the dipole is in unstable equilibrium.
What is the potential energy of a dipole moment P in a uniform electric field E?
So, Maximum Potential Energy=+PE at angle θ=π
What is the potential energy of a dipole in an external field?
From the above equation, we can see that the potential energy of dipole placed in an external field is zero when the angle Ɵ is equal to 90° or when the dipole makes an angle of 90°.
For what position of an electric dipole in a uniform electric field its potential energy is minimum and maximum?
Potential energy of an electric dipole is maximum when it makes 180 degree with electric field and minimum when angle between them is zero degree .