So lets say I'm computing the torque as a result of the interaction between two electric dipoles in the lab frame. Lets imagine they are in some electric field.
I then do : τ = r×F
If I now switch to the centre of mass frame I have to find their position vectors from the COM.
Why do I not have to re-define the electric field strength vector and ultimately the force vector on each dipole with respect to the centre of mass frame ?
I then do : τ = r×F
If I now switch to the centre of mass frame I have to find their position vectors from the COM.
Why do I not have to re-define the electric field strength vector and ultimately the force vector on each dipole with respect to the centre of mass frame ?