Dipole in an Electric Field

• Dipole in an Electric ...
Here you will learn how an electric dipole (e.g. a molecule) behaves in a homogeneous and inhomogeneous electric field. More: en.fufaev.org/dipole-in-elect...
Books by Alexander Fufaev:
1) Equations of Physics: Solve EVERY Physics Problem
en.fufaev.org/physics-equatio...
2) Alexander Fufaev and His Never Ending Story:
en.fufaev.org/lifestory

[@GeoffryGifari]

I'm just now aware of the electronvolt in your channel name

[@sadraadib306]

ive learned so much from your animations bro

[@madhavdua1246]

Logical and interesting

[@m1l22]

Could you do a video on generators and motors?

[@magnifiedmicrons]

nice😮but I also think that the location of dipole matters when you keep it between the two plates of capacitor.

[@maximiano629]

I was thinking the same thing

[@magnifiedmicrons]

@@maximiano629 then we are brothers from different mothers😊

[@fufaev-alexander]

nope, it doesn't! That is the special thing about the homogeneous field. There is only a rotation, but no displacement of the dipole - regardless of its position in the E-field. You must bear in mind that the negative charge of the dipole not only experiences an attractive force to the positive plate, but also a repulsive force from the negative plate. This also applies to the positive charge of the dipole. If you draw in the forces, they cancel each other out. The resulting force (total force) on the dipole is zero.

[@maximiano629]

I understand that, but the fact that it is a homogeneus electric field means that, because of the distances are not the same, then one side of the electric field should applie more force than the other, doesn't it? I'm trying to understand😅😅 great animations by the way :)

[@magnifiedmicrons]

@@maximiano629 same question from my end🤗

[@mohamedelouadghiri2016]

Thanks

[@talentinvein7213]

if we consider sepreation between charges is very small as in theory so dipole doesnot shift ???

[@madhavdua1246]

Btw, how can we put an electric dipole into a capacitor? Please reply 😇🙏

[@fufaev-alexander]

Do you mean how to do this experimentally?

[@physics1518]

Spray water vapor between the capacitor plates. You can work out a frequency from the angular velocity of the rotation and pick up the EM signal. You need to think about how to get the vapor down to atomic levels, etc.

[@GeoffryGifari]

So if a dipole is inside a homogeneous field and it has the right mass, it will just spin around forever?

[@fufaev-alexander]

Nope, it only aligns itself parallel to the field lines in the electric field and remains at rest forever. :)

[@GeoffryGifari]

@@fufaev-alexanderOh right... the spinning should be able to work if the dipole possesses angular momentum (why I mentioned mass) and the field alternates at the right moment

[@mosquitobight]

@@GeoffryGifari I don't think you need to alternate the electric field, just apply an electromagnetic wave of the same frequency as the rotating dipole

[@GeoffryGifari]

@@mosquitobight Hmmm... wouldn't that result in an alternating electric field? (also alternating magnetic field)

[@mosquitobight]

@@GeoffryGifari Yes, but applying an EM wave seems easier than alternating the main electric field. Actually it would be the electric field equivalent of NMR. By gradually changing the frequency and detecting the response you could record a resonance spectrum.

[@Delta._]

Just put your own voice man.

[@fufaev-alexander]

my laptop mic in a new environment is too bad for that... It creates an echo and sounds very bad. But the AI doesn't sound bad, does it?^^