Question

A small electric dipole p is placed on the x axis at the ppint

Answer 1

An electric dipole is formed of two charges opposite in nature and have small distance. It has dipole moment defined as the product of charge and distance between them . dipole moment is a vector quantity and has direction from negative charge towards positive charge. If uniform external electric field is applied in such a way that angle between the dipole moment and the field is not zero , then the forces on the two charges form a couple of force. The moment of these forces is

T=p×E=(pE sinr)n

Here, p is the dipole moment

E is the electric field.

r is the angle between dipole moment and the electric field

n is the unit vector perpendicular to p and E.

when the angle r = o,then the moment of force is zero.

Answer 2

Explanation:

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