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Results tagged with dipole-moment
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user 199630
Dipole moment is the electrostatic moment generated by two opposite charges taken together, far away from the charge's locations
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A question on dipole approximation
Feynman states this without explaining it. From what he's told you so far, it isn't obvious. (At least it isn’t obvious to me.)
In the next section, he defines the dipole moment for a collection of po …
- 52.2k
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Can there be a torque-less net force on a dipole in a magnetic field?
Can there be a torque-less net force on a dipole in a magnetic field?
Yes, such as when there is a point in the field where the magnetic field is zero but its directional derivative in some directio …
- 52.2k
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Direction of Force on a Dipole in a given Electric field
Think of a “finite-size dipole” as a positive charge at the tip of the $\mathbf p$ vector and an equal negative charge at the tail. The forces exerted by $q$ on these two charges will not be exactly e …
- 52.2k
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Is it a convention to take the dipole moment vector $\vec p$ in the direction opposite to th...
It is a convention that the dipole moment of a system of one positive charge and one negative charge points in the direction from the negative one to the positive one.
Instead of seeing this as being …
- 52.2k
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Observation of an electric dipole moment for atoms
Atoms in an external electric field acquire an electric dipole moment. This explains the observed Stark effect.
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Direction of dipole moment is different in different case
A similar question appeared in Chemistry SE. According to one of the answers,
“Chemists are very concerned with the ‘flow’ of electrons and electronegativity. So in the case of water we like to use t …
- 52.2k
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Looking for an understanding of Toroidal Moments
Yes. Although neutrinos have no charge and therefore don’t interact directly with an electromagnetic field, in principle they do so indirectly through electrons and W bosons. See the relevant one-loop …
- 52.2k
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Is there an electric dipole moment in an electron?
The electron is a fundamental point particle. It does not have sub-particles “inside”. However, its quantum interactions with other particles should give it a small electric dipole moment, according t …
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