An electric dipole always experiences a torque when placed in uniform as well as non-uniform electric field. But in non-uniform electric field, dipole will also experience net force of attraction. So the electric dipole in non-uniform electric field experiences both torque and force.
What does an electric dipole experience when it is kept in the non uniform electric field a only a force B only torque c force and torque both D Neither force nor torque?
When a dipole is placed in an electric field, the opposite charges on the dipole both experience a force due to the electric field. … Hence the dipole will experience both force and torque when placed in a non uniform electric field. Therefore, the correct answer is option (B).
What happens when an electric dipole is held in a non uniform electric field what will be the force and the torque when the dipole is held parallel or anti parallel to the electric field hence explain why does a comb run through dry hair attract pieces of paper?
So, when the electric field is not uniform then the net force will be non-zero and there will also be torque on the following system. If the dipole moment p is parallel or antiparallel to the external field E, the net torque is zero but there is a non-uniform force on the dipole E.
When an electric dipole is held at an angle in a non uniform electric field the net force F and torque on the dipole are?
Now, for a non-uniform electric field there will be a torque on the dipole but also a net force. Once the dipole comes parallel to the electric field vector a force will act on the dipole in the direction of increasing field.
What happens to a dipole in a 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 happens if the electric field is non uniform?
➡️Torque is non zero when dipole is placed in uniform as well as non uniform electric field but in non-uniform electric field, dipole will experience net force of attraction whereas in uniform magnetic field, it doesn’t.
What happens when a dipole is placed in a 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 would happen if the external field E is increasing parallel to P?
In the first case, the electric field is increasing parallel to ‘p’. … So the net force will be towards the negative charge which will cause the dipole to move in the direction opposite to the direction of the electric field.
When an electric dipole is held at an angle in a non uniform electric field?
Electric dipole will experience a torque when dipole vector is not parallel to electric field direction. The torque τ = p × E = pESinθ. when p and E are parallel then angle θ between the two vectors is zero, hence there will not be any torque.
When an electric dipole is kept near a positive charge?
When an electric dipole is kept near a positive charge, it will experience. Neither force nor torque.
Is it necessary for an electric dipole to experience a net force?
When a dipole is placed in a uniform electric field and dipole vector direction is not parallel to field direction, each chargs of dipole experiences a force. … Once the dipole is aligned to electric field, the net force will be zero because they are in opposite direction.