Why does a dipole have a direction from negative to positive while electric field lines go from positive to negative?

It’s direction is from negative to positive because in that system electron is negative and proton is positive and there is a difference in mass between them and so electron ‘s mass is less than proton so the one with less mass will move towards the one with more mass. It is just a convention to explain a quantity.

What happens when a dipole is placed in a non uniform electric field parallel to the 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 the dipole is parallel to the electric field then?

In particular, note that the torque is zero when the dipole and electric field vectors are parallel. 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.

When an electric dipole is placed in a uniform?

The net force acting on a dipole placed in a uniform electric field is zero. The forces on the two charges constituting the dipole are equal and opposite. Hence, the net force is zero.

When an electric dipole P is placed in a uniform?

An electric dipole of moment P is placed in a uniform electric field E such that P points along E . If the dipole is slightly rotated about an axis perpendicular to the plane containing E and P and passing through the centre of the dipole, the dipole executes simple harmonic motion.

What happens when electric dipole is placed in non uniform electric field what will be the force and torque acting on the dipole?

Force and torque. 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.

Why an electric dipole placed in a uniform electric field does not undergoes acceleration?

Explanation: Because the force on negative charge and the force on positive charge equal and opposite direction so it does not undergo acceleration because Force net is always zero.

What is a non uniform electric field?

Non uniform electric field is the one in which the electric field vectors are more closely spaced near the source charge and they get far apart as the distance from the source charge increases.

Is electric field parallel or antiparallel to electric dipole moment?

Here the dipole and hence its dipole moment is aligned anti parallel to the external increasing field.

When a dipole is placed in a uniform external field?

Question: An electric dipole is placed at an angle of 30o with an electric field of intensity 2×105 N/C. It experiences a torque of 4Nm. Calculate the charge on the dipole if the dipole length is 2cm.

What does happen to an electric dipole when it is placed in a uniform electric field with an angle theta?

An electric dipole in a uniform electric field experiences (When it is placed at an angle theta with the field) In uniform electric field dipole experience only torque, but no force.

When electric dipole is placed in a uniform electric field E then at what angle between P and E the value of Torque will be maximum?

So Torque is maximum on Dipole if angle between P amd E is 90 degree….

What is the direction of dipole-with dipole moment?

The direction of force experienced by a positive charge due to an electric field is along the direction of the field while that by a negative charge is along the opposite direction to the field. As seen above, the dipole-with dipole moment $\\vec{p}$-is aligned in the opposite direction to that of increasing electric field.

What is the net force on a dipole in an electric field?

The forces on the two charges are equal and opposite, so there is no net force on the dipole. However, there is a torque: A dipole in an external electric field. (a) The net force on the dipole is zero, but the net torque is not.

What is the difference between inherent dipole and induced dipole?

Generally, the magnitude of an induced dipole is much smaller than that of an inherent dipole. For both kinds of dipoles, notice that once the alignment of the dipole (rotated or induced) is complete, the net effect is to decrease the total electric field in the regions inside the dipole charges ( (Figure) ).

What is the direction of force due to electric field?

The direction of force experienced by a positive charge due to an electric field is along the direction of the field while that by a negative charge is along the opposite direction to the field.