# Frequent question: How much work is done in turning an electric dipole?

Contents

Work done in rotating an electric dipole is 6.4 × 10-4 J.

## What is the work done in rotating an electric dipole?

Therefore we have that the work done by the external field in rotating the electric dipole through some angle is W=∫θfθiqEsinθrdθ+∫θfθiqEsinθrdθ.

= 0.

## How much work is required in turning an electric dipole of dipole moment P from its position of stable equilibrium?

The potential energy of the dipole is minimum when p is aligned with the field E (ϴ = 0) and by convention is taken as – pE , and maximum when p is opposed to the field (ϴ = 180) when it is + pE. Note that ϴ = 0 corresponds to the position of stable equilibrium, and ϴ = 180 to the position of unstable equilibrium.

W=2pE(1−cosθ)

## How do you calculate work done on a dipole?

Energy of a dipole in electric field: We calculate the energy of a diple in a electric field E by bringing the dipole from infinity and placing it such that −q charge is at r. Work done is ( E = −∇V (r)), U = −q V (r) + q V (r + s).

## What will be the nature of electric potential at a place where the electric field is zero?

If the electric field at a point is zero then the potential at that point will be a constant.

## When electric dipole is placed in a uniform electric field it experience?

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.

## In which orientation a dipole placed in a uniform electric field is in stable equilibrium?

-The dipole is in stable equilibrium when it is aligned parallel to the electric field (i.e. the angle between the dipole moment and the electric field is 0∘).

## What is the electrostatic potential due to an electric dipole at an equatorial point?

The electrostatic potential due to an electric dipole at an equatorial line at any point of that line is always zero. The potential on equatorial point due to charge of electric dipole is equal in magnitude but opposite in nature and hence the resultant is zero.

THIS IS UNIQUE:  What are the fuels used to generate America's electricity?

W=2pE(1−cosθ)

## Is an electric dipole is kept in a uniform electric field then resultant electric force on it is?

Hence, the electric force on a dipole when it is placed in a uniform electric field is always zero.

## Can electric potential at a point be zero?

Yes, electric potential can be zero at a point even when the electric field is not zero at that point. … At the midpoint of the charges of the electric dipole, the electric field due to the charges is non zero, but the electric potential is zero.