electric dipole moment वाक्य
उदाहरण वाक्य
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- The strong interaction should also violate CP, in principle, but the failure to observe the electric dipole moment of the neutron in experiments suggests that any CP violation in the strong sector is also too small to account for the necessary CP violation in the early universe.
- :: : The neutron is " supposed " to have a Neutron electric dipole moment according with theoretical models, but that moment is so small that no experiment has ever been able to detect it . talk ) 19 : 21, 30 March 2011 ( UTC)
- Where \ varepsilon _ { 0 } is the vacuum permittivity ( also called permittivity of free space ), and "'P "'is the ( macroscopic ) density of the permanent and induced electric dipole moments in the material, called the polarization density.
- In classical electromagnetism, "'polarization density "'( or "'electric polarization "', or simply "'polarization "') is the vector field that expresses the density of permanent or induced electric dipole moments in a dielectric material.
- In the case of two classical point charges, \ scriptstyle { + q } and \ scriptstyle {-q }, with a displacement vector, \ scriptstyle { \ mathbf { r } }, pointing from the negative charge to the positive charge, the electric dipole moment is given by
- In 2014, Gabrielse, as part of the ACME collaboration with John Doyle at Harvard and David DeMille at Yale, measured the electron electric dipole moment to over an order of magnitude over the previous measurement using a beam of thorium monoxide, a result which had implications for the viability of supersymmetry.
- This dependence on the electric dipole-electric dipole polarizability derivative differs from infrared spectroscopy where the interaction between the molecule and light is determined by the electric dipole moment derivative, the so-called atomic polar tensor ( APT ); this contrasting feature allows one to analyze transitions that might not be IR active via Raman spectroscopy, as exemplified by the rule of mutual exclusion in centrosymmetric molecules.
- Both ordinary and collision-induced spectra may be observed in emission and absorption and require an electric or magnetic multipole moment-in most cases an electric dipole moment-to exist for an optical transition to take place from an initial to a final quantum state of a molecule or a molecular complex . ( For brevity of expression we will use here the term " molecule " interchangeably for atoms as well as molecules ).
- It is a vector, parallel to the bond axis, pointing from minus to plus, as is conventional for electric dipole moment vectors . ( Some chemists draw the vector pointing from plus to minus, but only in situations where the direction is not important . ) This vector can be physically interpreted as the movement undergone by electrons when the two atoms are placed a distance " d " apart and allowed to interact, the electrons will move from their free state positions to be localised more around the more electronegative atom.
- For the simple electric dipole given above, 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 . ( To be precise : for the definition of the dipole moment, one should always consider the " dipole limit ", where, for example, the distance of the generating charges should " converge " to 0 while simultaneously, the charge strength should " diverge " to infinity in such a way that the product remains a positive constant .)
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