- #1
Malamala
- 299
- 27
Hello! Is it possible to build a setup (containing time dependent and independent electric fields), such that a charged particle will feel a force proportional to its velocity i.e. ##ma = -\alpha v##?
Sorry, I meant a damping like force, so in the opposite direction to its motion.Baluncore said:Magnetic deflection is proportional to velocity, but it is sideways.
Which direction do you want the force to operate ?
http://www2.hawaii.edu/~jmcfatri/labs/magdefl.html
It's not possible using only the electric field, but it is possible if you have "something else" to measure the particle velocity in real time and you actively change the direction of the electric field to slow the particle down. This is, in a nutshell, what LIGO does to cool their kg-scale mirrors to an average quantum number of something like 10 IIRC. I guess you could call it a Maxwell's demon, but I'm scared now that I've said this because I use that term pretty loosely and I feel like a bunch of smarter folks are going to rip me a new oneMalamala said:Is it possible to build a setup ... such that a charged particle will feel a force proportional to its velocity i.e. ma=−αv?
Does this happen in a resistive material?Malamala said:Hello! Is it possible to build a setup (containing time dependent and independent electric fields), such that a charged particle will feel a force proportional to its velocity i.e. ##ma = -\alpha v##?
Electric damping force is a type of damping force that is created by the interaction between an electric current and a magnetic field. It is often used in electrical systems to reduce unwanted vibrations and oscillations.
Electric damping force is created by passing an electric current through a conductor that is placed in a magnetic field. The interaction between the current and the magnetic field creates a force that opposes the motion of the conductor, resulting in damping.
The main purpose of using electric damping force is to reduce or eliminate unwanted vibrations and oscillations in electrical systems. This can improve the stability and performance of the system and prevent damage to sensitive components.
Electric damping force can be incorporated into a build setup by using a combination of electrical and mechanical components. This may include a conductor, a magnetic field, and a mechanism for controlling the flow of electric current.
Some of the benefits of using electric damping force include improved system stability, reduced wear and tear on mechanical components, and increased precision and control in electrical systems. It can also help to reduce noise and vibrations, making the system more comfortable for users.