When dipole moment ‘p’ is parallel or antiparallel to electric field ‘E’ , the net torque is zero, but there is a force on the dipole E which is not uniform.
At what position electric field due to an electric dipole is zero?
When a dipole is immersed in a uniform electric field, as illustrated in Figure 16.4. 3, the net force on the dipole is zero because the force on the positive charge will always be equal and in the opposite direction from the force on the negative charge.
When an electric dipole does placed in a non uniform electric field experiences a zero torque but non zero force?
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.
Does an electric dipole always experience a torque in electric field when is the torque on the electric dipole maximum and minimum?
Answer: If the dipole moment vector is not parallel to the direction of electric field then both the charges comprising the dipole experience a force of equal magnitude but in the opposite direction. Thus it experiences only torque.
What is the direction of torque in dipole?
And the direction of the dipole moment is from the positive to the negative charge, it can see from the above equation that the torque is the cross product of the dipole moment and electric field. Notice that the torque is in the clockwise direction (hence negative) in the above figure.
Is the electric field of a dipole zero?
Thus, in case of an electric dipole , the field is not zero at any point except at infinity. The basic method is to calculate the vector sum of electric forces experienced by a unit charge at the given point due to individual charge on the dip…
Why is the electric field of a dipole not zero?
Dipole consists of two charges – one positive charge and one negative charge. Those two charges are not at the same point in space. That means that they give some nonzero electric field in total.
When an electric dipole placed in presence of electric field experiences a non-zero force?
When an electric dipole is placed in a non uniform electric the net force on the dipole due to the electric field will be non-zero as well as the torques it experiences in the field will be non-zero.
Does a dipole experiences a force when placed in the 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.
When an electric dipole is placed in a uniform electric field it experiences?
When an electric dipole is placed in a uniform electric field, it experiences a torque but no force. An electric dipole placed in a uniform electric field experiences a torque that aligns the dipole parallel to the direction of the electric field with zero net force.
What is the orientation of an electric dipole?
The dipole is in stable equilibrium when electric dipole is in the direction of electric field vector and is parallel →P∣∣→E.
What is the direction of electric dipole moment vector?
The electric dipole moment, a vector, is directed along the line from negative charge toward positive charge. Dipole moments tend to point along the direction of the surrounding electric field.
Which orientation of electric dipole it will be in unstable equilibrium?
-The dipole is in unstable equilibrium when it is oriented anti-parallel to the electric field (i.e. the angle between the dipole moment and the electric field is 180∘).