Frequent question: How do you find electric flux when dipole moment is given?

What is the electric flux due to dipole?

The electric flux due to a dipole is zero.

What is the formula for electric dipole moment?

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.

What is the relation between dipole moment and electric field?

An electric dipole in an external electric field is subjected to a torque τ = pE sin θ, where θ is the angle between p and E. The torque tends to align the dipole moment p in the direction of E. The potential energy of the dipole is given by Ue = −pE cos θ, or in vector notation Ue = −p · E.

What is the total flux through a dipole?

Therefore there is equal amounts of inward and outward flux and thus, the total flux is zero when no charge is inside the surface. When a Gaussian surface is considered so that only one point charge of a dipole is enclosed, then the elements electric flux coming out from the surface is not zero.

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What is the electric flux coming out of a sphere if a dipole is kept inside it?

the total electric flux leaving the spherical surface is given by. ∴Flux coming out of the sphere is zero.

What is the SI unit of electric flux?

Electric flux has SI units of volt metres (V m), or, equivalently, newton metres squared per coulomb (N m2 C1).

What is electric flux Class 12?

Electric flux is the measure of flow of the electric field through a given area. Electric flux is proportional to the number of electric field lines going through a normally perpendicular surface. … Unit of electric flux is NC1m2.

What is Q into 2a?

Here, 2a is a distance and hence is scalar. Also, q is scalar. The product of two scalars is also a scalar.

What is electric dipole moment Class 12?

The electric dipole moment of the electric dipole is defined as the product of the magnitude of one of the charges of the dipole and the separation distance between them. … The electric dipole moment is always directed from negative charge to positive charge.

What is electric dipole calculate electric field at a point due to electric dipole?

E acts in the direction of the 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∈∘. 2(2d)r3=14π∈∘.

What is the electric flux through the Gaussian surface containing two electric dipoles?

– The electric flux through a Gaussian surface is equal to 1/ε₀ times the net charge enclosed by it. – As the net charge is zero in the case of a dipole, so the electric flux passing through the surface will be zero.

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Why is the electric flux zero across a closed surface with an electric dipole inside?

In surface S3, as per the Gauss Law, the net electric flux is zero as there is no charge enclosed in the surface. Also the other reason the book mentions for this that since the amount of flux entering is equal to the amount leaving, the net flux is zero.