The way I view it is electrons flowing in a wire will witness length contraction occurring with the protons causing a "change" in magnetic field (assuming acceleration of flow). From the electron's frame, it is seeing the protons contracting together. Charge density is physically changing which...
Sure the total energy of frame A will not change but what I am trying to point out is the energy from the magnetic field produced is not from the same source as the energy of the battery pushing the electrons in frame A.
My analogy to two coils inducing each other is as follows:
Person A pushes...
Sorry I realized this part sounds confusing and I wasn't sure how to edit my post. The last sentence in the quote above "This energy comes from..." I was referring to the energy causing the charge imbalance which creates the opposing magnetic field.
Okay so I looked into the wikipedia page and also some linked pages that it had to better understand everything. I've also watched this video which explains the some of the math which I found quite helpful.
However I don't understand how it is a false idea that a magnetic field is actually an...
I agree with that 100%. The electrons are flowing thanks to the power source of the circuit. What confuses me is the Length Contraction is what is creating the magnetic field. There is no energy in a magnetic field. But there IS energy in a change in magnetic field. So as soon as a change in...
I know it must be conserved. I guess I should have clarified. Correct me if I'm wrong but Energy from Length Contraction is converted to the rate of change in charge, causing the change in magnetic field to occur. However, where is the energy from length contraction coming from? It was not from...
Hey guys,
I've recently learned that magnetism is an electric field viewed from a different frame of reference and that the mathematics of electrodynamics describes this. However something raised my eyebrow which I wasn't quite clear on.
If energy is put into a net flow of electrons, the...
Which two ideas? inductance and magnetic field of a coil?
Okay then maybe I should use the term reactance?
For instance, if you measure the inductance of the primary of a transformer, you will measure let's say 1 H. Then when you short the secondary, you will measure something like 0.001 H...
Hi,
inductance is the property of a conductor by which a change in current in the conductor "induces" (creates) a voltage (electromotive force) in both the conductor itself (self-inductance). --wikipedia
From what I understand, the inducing happens due to the resulting change in magnetic field...