(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

Given a permanent dipole, call itp, at the origin pointing along_{NO}r(general vector, not along any particular axis). A polarizable atom as at position_{1}r. What is the induced dipole moment, call it_{2}p, of this atom in terms of_{He}pand_{NO}r?_{2}

2. Relevant equations

p=a_{NO}_{1}E+a_{par}_{2}E_{perp}

a1 is the coefficient of polarizability in the direction parallel to the electric field, a2 is the perpendicular one.

The second part of this expression should be zero, as the induced dipole should point in the direction of the electric field.

3. The attempt at a solution

I know/understand that whatever this induced dipole is, it will point in the direction of the electric field due to the permanent dipole. Really, it's not the answer I'm after- rather, I need help with the method. Would I just say that for the permanent dipole, there is essentially a negative charge at the origin and a positive charge atpand superimpose the electric fields? It seems like this should work, but it's messy/tedious/not giving me the right answer, so I am probably making a wrong assumption with this method._{1}

I suppose the real problem I have is not solving for the dipole, but rather the electric field due to a general permanent dipole. I would vastly prefer a point in the direction of deriving it rather than someone just giving a formula.

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# Homework Help: Dipole-Induced Dipole Interaction

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