# Quick Answer: Why electric dipole Cannot possess translatory motion in an external electric field?

Contents

## Can an electric dipole in an uniform electric field have translatory motion?

An electric dipole is held in a uniform electric field (i) Using diagram show that it does not undergo any translatory motion, (ii) derive an expression for torque acting on it.

## 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.

THIS IS UNIQUE:  Do wood boilers need electricity?

## Why does no translational force acts on a dipole placed in an uniform electric field?

Since the electric dipole is held in a uniform electric field no net force is acting on the dipole. Force due to -q is -qE and force due to +q is qE. Hence the no net force is acting on it and the translational forces is 0.

## Can an electric dipole in an uniform electric field have I translator motion II rotator motion?

<br> Reason (R ): In a non-uniform electric field, a dipole experiences a force as well as torque. When an electric dipole is placed in a uniform field at an angle θ with the field, the dipole experiences a torque. … In this way, dipole will have both rotational as well as linear motion.

## What type of motion will dipole experience when placed in uniform electric field and non uniform electric field?

Now since the forces on the charges are not linear so the dipole will also experience a non-zero torque. Hence the dipole will experience both force and torque when placed in a non uniform electric field.

## What happens when an electric dipole is suspended in a uniform electric field?

Electric dipole in a uniform electric field

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.

## 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 a dipole is placed with its dipole moment vector along external field it is stable when its potential energy?

The moment of the dipole is directed between -ve charge and + charge. Net force and torque on the system should be zero in equilibrium. Therefore, if Potential Energy is high, the equilibrium will be unstable, and equilibrium will be stable for minimum Potential Energy.

## What is the potential energy of a dipole placed in an external field?

The potential energy of a dipole in an external field

τ = p × E. This work is saved as the system’s potential energy. The potential energy U(θ) can then be linked to the dipole’s inclination θ.

## Why an electric dipole placed in a uniform electric field does not undergoes acceleration 1?

Explanation: Beacause the force F=qE on positive charge and force F= -qE on negative charge and these force act on dipole equal and opposite at 180° degree angle in uniform electric field. Fnet on dipole always zero and dipole dose not undergos accleration.

## For what orientation does an electric dipole experiences a zero torque but non zero force in a non-uniform electric field?

For what orientation does an electric dipole experiences a zero torque but non-zero force in a non-uniform electric field? 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.

## What would happen if the external electric field is increasing?

If the external field E is increasing, the dipole moment P will have a net force acting towards the increasing field and when E is kept anti-parallel, the net dipole moment will have a force over the decreasing field. Explanation: When the electric field is not uniform, the net dipole moment will be zero.

THIS IS UNIQUE:  How much does a PC cost in electricity?