Frequent question: What is the net force acting on a dipole placed in an external electric field?

In a uniform electric field the net force on an electric dipole is zero. The negative and the positive charge are ated on by forces that have the same magnitude but opposite directions.

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

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.

What is the net force acting on a dipole in non-uniform electric field?

When a dipole is placed in an electric field, the opposite charges on the dipole both experience a force due to the electric field.

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What happens to an electric dipole when it is placed in external electric field?

If a dipole is kept in an external electric field, it experiences a rotating effect. By external electric field, we mean electric field that is not induced by dipole itself. The rotating effect is also called torque on the dipole. … This can be done by calculating the net torque on opposite charges of the dipole.

Is there a net force on a dipole in a constant electric field if so in what direction?

Consider an electric dipole placed in a region of constant electric field as shown in Figure 31.2. 1. Forces on the two charges will be equal in magnitude but opposite in direction. That will make the net force on the dipole zero.

What is the net force in an electric field?

The attractive or repulsive interaction between any two charged objects is an electric force. … The magnitudes of the forces are then added as vectors in order to determine the resultant sum, also known as the net force. The net force can then be used to determine the acceleration of the object.

How do you find the net force of a dipole?

The formula of the force exerted on an electric dipole by non-uniform electric field. When an electric dipole of moment P is located in a non-uniform electric field E, there is an net force exerted on it. However, the formula of the force in some books is read F=∇(P·E), while in other books, it is F=(P·∇)E.

What is the net force and net torque on 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.

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What is the total force acting on a dipole?

The total force on the dipole is the sum of the forces on the individual charges. Unless the electric field at the location r + d of the positive charge differs from that at the location r of the negative charge, the separate contributions cancel.

When an electric dipole is held at an angle in a uniform electric field the net force?

Answer: the forces experienced by the 2 charges constituting the electric dipole when placed in an uniform external electric field are equal and opposite in nature, the net force on the dipole is zero.

Why the net force on 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 a dipole is placed in external field?

It is interesting to learn that, a dipole placed in an external electric field acquires a rotating effect. This rotating effect is termed as ‘torque’ felt by the dipole. Excitingly, the net torque can be calculated on the opposite charges present in a dipole for estimating the overall rotation.

When dipole placed in electric potential energy of dipole is?

Let us consider an electric dipole of the dipole moment →P in a uniform electric field →E with →P making an angle θ with →E. , since the dipole axis is perpendicular to the field so potential energy is equivalent to zero.

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What is the net force on the dipole chegg?

The net force on the electric dipole is zero, but there is a torque that tends to rotate the dipole clockwise.

What is the value of net torque and net force acting on a dipole?

Answer: In a uniform electric field, both the point charges comprising the dipole will experience force, equal in magnitude and opposite in direction. Though the net force will always be zero, the torque will be in same direction for both the charges.

What is the net force on the small dipole inside the capacitor?

The force on dipole would be zero, as dipole consists of two opposite charges whose forces will cancel each other.