Electric dipole moment - Wikipedia
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 unit for electric dipole moment is the coulomb-metre (C⋅m). The debye (D) is another unit of measurement used in atomic physics and chemistry.
electric dipole moment, p (or electric dipole for short), is a measure of the polarity of a system of electric charges. Here x is the displacement vector pointing from the negative charge to the positive charge. This implies that the electric dipole moment vector points from the negative charge to the positive charge.
More surprising is the magnetic dipole moment found for individual electrons. This moment, associated with the electronic property of spin, is defined as the Bohr magneton. where e/m is the electronic charge to mass ratio, 1.76 × 1011 coulomb/kg, and 2π ̄h is Planck’s constant, ̄h = 1.05 × 10−34 joule sec so that me has the units A − m2.
Dipole - Wikipedia
Dipoles, whether electric or magnetic, can be characterized by their dipole moment, a vector quantity. For the simple electric dipole, the electric dipole moment points from the negative charge towards the positive charge, and has a magnitude equal to the strength of each charge times the separation between the charges.
An electric dipole is a +Q and a Q separated by a vector a Very common system, e.g. in atoms and molecules The electric dipole moment is p= Qa pointing from Q to +Q
1.4: Dipoles - Physics LibreTexts
The dipole moment \(\overrightarrow p\) is parallel to the line of charge. Find the magnitude of the torque on the dipole in terms of \(r\), \(\overrightarrow p\), and \(\lambda\). The dipole moment is now pointing directly at the line of charge (perpendicular to it).
Electron magnetic moment - Wikipedia
In atomic physics, the electron magnetic moment, or more specifically the electron magnetic dipole moment, is the magnetic moment of an electron resulting from its intrinsic properties of spin and electric charge. The value of the electron magnetic moment (symbol μ e) is −9.284 764 6917 (29) × 10 −24 J⋅T −1. [1]
i) The incident E-field induces a time-varying dipole moment in the sphere (recall the electrostatics problem of a dielectric sphere in a uniform E-field from homework 3) ii) The time-varying dipole radiates like a Hertziandipole, and this radiation is the
The dipole radiation formalism can be applied to charge motions that are L&L driven by incoming electromagnetic waves. This is the domain of scattering. Sec. 78 Consider a 100% linearly-polarized electromagnetic wave that jostles a free charge at rest. The electric eld of the wave is in the (y;z)-plane: E = E 0 cos(kr !t+ ) : (19)
5.8: Electric Dipoles - Physics LibreTexts
Define and calculate an electric dipole moment; Explain the physical meaning of the dipole moment
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