Thus, a dipole will always experience a torque that tends to align it with the electric field vector. The dipole is thus in a stable equilibrium when it is parallel to the electric field.
Which orientation is a dipole placed?
A dipole placed in a uniform electric filed is in Stable equilibrium when the electric field is directed along the direction of the dipole i.e., when is parallel to. Unstable equilibrium when the electric filed is directed at an angle of 180 degrees with the direction of the dipole, i.e., when is anti-parallel to.
When an electric dipole is in an external electric field it will?
1: A dipole in an external electric field. (a) The net force on the dipole is zero, but the net torque is not. As a result, the dipole rotates, becoming aligned with the external field.
In which orientation a dipole placed in uniform electric field is in stable or 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.
Which position of dipole is known as stable and unstable equilibrium?
(2) Dipole moment is always zero. ∴ PE is high in the case of θ = 180, the equilibrium will be unstable and when θ = 0 then PE is low, so the equilibrium is stable.
At what position is the electric dipole in uniform electric field?
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.
What will happen if an electric dipole is placed 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.
How does a dipole behave in electric field?
In an electric field a dipole undergoes a torque, tending to rotate so that its axis becomes aligned with the direction of the electric field. … The electric dipole moment, a vector, is directed along the line from negative charge toward positive charge.
What is dipole in electric field?
A pair of electric charges with an equal magnitude but opposite charges separated by a distance d is known as an electric dipole. The electric dipole moment is a vector having a defined direction from the negative charge to the positive charge. …
What happens when a dipole is placed in an electric field?
If a permanent dipole is placed in an external electric field, it results in a torque that aligns it with the external field. If a nonpolar atom (or molecule) is placed in an external field, it gains an induced dipole that is aligned with the external field.
Which orientation of a dipole in an external electric field corresponds to stable equilibrium justify?
The dipole is in stable equilibrium when electric dipole is in the direction of electric field vector and is parallel →P∣∣→E.
For which orientation in electric field electric dipole has maximum potential energy?
When the angle between the dipole moment and electric field is 180° then the potential energy of electric dipole is maximum.
How does the torque acting on an electric dipole affect it when placed in a uniform electric field?
How does a torque affect the dipole in an electric field? The torque tends to align the dipole in the direction of the electric field. … The charge is moving continuously from point to point rather than jumping from one point to another and experiences continuous force in the electrostatic field.