# What is the expression for electric field intensity at axial position due to an electric dipole?

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Let P be a point on the axial line of the dipole. Let the distance of point P from the midpoint of the dipole be r such that r>>>a. The electric field at point P will be due to the two charges on the given dipole. The magnitude of electric field due to the charge +q will be E+q=kq(r−a)2.

## What is the electric field intensity due to 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. Dipole moment is the product of the charge and distance between the two charges.

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## What is the expression for electric field due to dipole at equatorial position?

Let P be a point at a distance r from the center of the dipole on the equatorial line, where the electric field is to be calculated. Let E1 be electric field intensity at P due to charge –q. Therefore, From right-angled triangle AOP, we have AP = √r2 + a2 .

## What is the relation for electric field intensity at the axial line of an electric dipole?

E varies as 1/r3 1 / r 3 in case of an electric dipole whereas in case of monopole, E∝1r. E ∝ 1 r .

## What is the expression for electric field intensity?

Derive an expression for electric field intensity due to an electric dipole at a point on its axial line.

## What is formula of electric dipole?

An electric dipole is formed by two point charges +q and −q connected by a vector a. The electric dipole moment is defined as p = qa .

## What is electric field on equatorial line?

Consider an electric dipole AB consisting charges +q and -q separated by distance 2l and pole strength q. Let, P be the point on the equatorial line at distance d from mid-point of the dipole i.e. O as shown in figure 1. Now, the electric field, E1​ at point P due to north pole along AP is, E1​=4πϵ0​1​AP2q​

## What is electric dipole derive an expression for electric dipole?

Define electric dipole moment. 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. … Two point charges qA = 3 μC and qB = –3 μC are located 20 cm apart in vacuum.

## What is electric field intensity give its SI unit derive expression for electric field intensity at a point on equatorial line of electric dipole?

The force experienced by a unit positive charge placed at a point is termed as the electric field intensity at that point. It is vector quantity it’s direction is in the force acting on +ive charge. The SI unit of electric field intensity is NC1.

## What is electric dipole expression?

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 do you mean by electric dipole derive an expression for intensity of electric field at a point in end on position of electric dipole?

Consider an electric dipole consisting of charges –q and +q separated by a small distance 2r in free space. Let P be a point on the axial line of the dipole at a distance x from the centre O of the dipole. (i.e OP = x) Electric field intensity at point P due to +q charge. E 1 = 1 4 π ε 0 .

## What is the relation between axial and equatorial electric field?

Axial line is the line which is passing through the positive and negative charges and the point lies on that line is called the axial point. Equatorial line is the perpendicular line to the line passing through the positive and negative charges and the point lies on that line is known as the equatorial point.

## What is an electric dipole and the expression for electric field intensity E due to an electric dipole?

Hint: To derive the expression for electric field due to an electric dipole, consider AB is an electric dipole of two point charges – q and + q separated by small distance 2d and then consider that P is a point along the axial line of the dipole at a distance r from the midpoint O of the electric dipole.

## What is the electric field and obtain the expression of electric field due to pointing?

We can find the electric field created by a point charge by using the equation E=kQr2 E = k Q r 2 .

## What is electric field obtain an expression for the electric field at any point?

Electric field at a point on the equatorial line of an electric dipole. Consider an electric dipole consisting of two point charges + q and −q separated by a small distance AB = 2l with centre at O and dipole moment, p q = (2l) as shown in the figure.