Question

A short dipole of dipole moment p is placed at a distance x from origin .a charge q is kept fixed at origin .the force electric upon electroc dipole due to point charge q will be

Answer 1

We know that F=qE.
q is given
So we have to calculate E first
E=2KP/r³
Where r=x
K and P are given .
So the ans is F=q× 2KP/x³

Answer 2

Concept:

• Dipole moments
• Force due to a dipole
• Positive and negative charges in any electromagnetic system are separated by an electric dipole.
• A distance, d, separates two equal charges that make up an electric dipole.
• The electric dipole exerts a force on charges that are put close by.
• The two charges' combined vector forces form the net force.

Given:

• Dipole moment = p
• Distance of dipole from origin = x
• Value of charge = q

Find:

• The electric force acting on the electric dipole due to the point charge q

Solution:

Force due to a point charge is equal to the product of the point charge and the electric field it is present in.

F = qE

E = 1/4π∈₀ (2p/x³)

F = (q/4π∈₀) (2p/x³)

F = 2pq/4π∈₀ x³

F = pq/2π∈₀ x³

The force is pq/2π∈₀ x³.

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