# What do you mean by electric field intensity and electric dipole moment?

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Derive an expression for the electric field intensity at any point along the equatorial line of a dipole. Electric dipole moment is defined as the product of either charge and the length of the electric dipole. … Consider an electric dipole consisting of charges -q and +q seperated by a distance 2a.

## What do you mean by electric field intensity?

A measure of the force exerted by one charged body on another. The electric field intensity (volts/meter) at any location is the force (Newtons) that would be experienced by unit test charge (Coulombs) placed at the location. …

## What do you mean by electric dipole moment?

The electric dipole moment is a measure of the separation of positive and negative electrical charges within a system, that is, a measure of the system’s overall polarity. The SI units for electric dipole moment are coulomb-meter (C⋅m); however, a commonly used unit in atomic physics and chemistry is the debye (D).

## What do you mean by electric field intensity and electric dipole moment derive an expression for electric field intensity on its equatorial line of an electric dipole?

E=4πϵ01r42pr or E=4πϵ01r32p….( ii) This is the expression for the electric field strength at axial position due to a short electric dipole. (ii) At a point of equatorial line: Consider a point P on broad side on the position of dipole formed of charges +q and −q at separation 2a.

## What is electric field intensity in dipole?

E acts in the direction of dipole moment. Therefore, the expression for the electric field intensity due to an electric dipole at a point on its axial line is E=q4π∈∘.

## What is electric field intensity with example?

If the electric field is produced by a point charge q, then from Coulomb’s law F → = 1 4 π ε 0 q q 0 r 3 r → field due to point-charge q at position in free space.

## Can electric field intensity be negative?

An electric field can never be negative. An electric field is a force experienced by the charge divided by the magnitude of the charge.

## What is dipole moment example?

A dipole moment is simply the measure of net polarity in a molecule. … Polar molecules exhibit a large difference in electrical charge (a positive end and a negative end), otherwise known as a dipole moment. For example, ammonia (NHsub3) is a polar molecule.

## Why is electric dipole moment important?

An electric dipole consists of 2 equal magnitude, opposite-signed charges. The physical significance is it gives a measure of the polarity/polarization of a net neutral system. If the dipole moment is small, either the charges are small or the separation is small.

## What is electric dipole example?

An electric dipole is defined as a couple of opposite charges q and –q separated by a distance d. … The simplest example of an electric dipole is a pair of electric charges of two opposite signs and equal magnitude separated by distance.

## What is electric dipole formula?

The formula for electric dipole moment for a pair of equal & opposite charges is p = qd, the magnitude of the charges multiplied by the distance between the two.

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## What is electric field at equatorial point?

Two equal and opposite charges seperated by some distance constitute a dipole. The electric field strength due to a dipole, far away, is always proportional to the dipole moment and inversely proportional to the cube of the distance.