All Questions
Tagged with electromagnetism forces
525
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Tension generated in a metallic loop placed in a time varying magnetic field [closed]
We have a metallic wire circular loop of resistance $R$, having radius $a$, placed in a magnetic field $\bf{\vec{B}(t)}$. The magnetic field is perpendicular to the plane of the wire.
The magnetic ...
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1
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Why is normal contact force electromagnetic in nature?
I learnt that normal contact force can be interpreted as the restoring force when an object undergoes deformation due to external stress, and it is perpendicular to the surface of contact.
I also ...
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What is the physical significance of the negative sign in the lorentz force equation in presence of magnetic monopole?
This question is similar to that of: Why does the extended Lorentz force law have a negative sign?
The Lorentz force on a magnetic monopole is given as:
$$\vec{F}=q_m(\vec{B}-\vec{v}\times\frac{\vec{E}...
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Cleaning silt off magnets
I gone done a foolish thing; I got my set of spherical (⌀ 5 mm) neodymium magnets covered in of (what is presumably iron based) ferromagnetic silt/sand particles.
With some difficulty, I've been able ...
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Are there any experiments showing any deviation from the conventional formula for the Lorentz force?
I want to know if there are experiments showing that the second term of the Lorentz force formula is measured slightly differently from the conventional $qv×B$ for some fundamental particles.
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How does the Electric field apply a force?
How does a static electric field apply force to charges within its field? I understand that the source of electric fields are charged particles, and the reason charges will attract or repel each other ...
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Is there a more "physically mature" way to think about the right hand rule with electromagnetism?
I've always found using the righthand rule to remember how forces, B-fields, and particle velocities to be intellectually cheating myself a bit. It feels like being able to multiply numbers by using ...
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Are Electric Field lines thought to be "in tension"?
I had a thought the other day about how electric field lines and how they explain like charges repelling and opposites attracting. I read on another post that electric field lines are thought to be &...
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Does a levitating Superconductor experience reistance to motion from the magnetic field if a force is applied?
If one has a superconductor that's being levitated on a track and you apply a force through its c.m. completely parallel to the track it's on (perpendicular to gravity), would there be any kind of ...
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Why this term can be written as the electric force component of the lorentz law?
I am reading Special Relativity and Classical Field Theory by Susskind. In chapter 6, he is deriving the Lorentz force law from the action, and he presents the following equation $$m\frac{d}{dt}\frac{\...
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Is force perpendicular to magnetic field in a bar magnet?
Recently I started this topic. My lecturer used
$$F_{B}=q_{n}B$$
I have two questions in this topic.
By this equation both the magnetic field and Force are in same direction. But aren't they supposed ...
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Modeling particles in electric and magnetic fields (software recommendations)
Does anyone know of free software that would allow me to visually model particles moving in electric and magnetic fields, ideally, including magnetic fields extended/altered by ferromagnetic materials?...
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Question Regarding The Movement of Charges [duplicate]
We know that two electrons repel each other since they have like charges, which means they move in opposite directions. But how can they move if they exert equal and opposite charges, aren't the ...
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Can a net propulsive effect occur between phase shifted antennae?
So this question centers around an electromagnetic thought experiment suggested by the patent titled "Efficient RF electromagnetic propulsion system with communications capability", ...
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Are electric force and strong force equal in magnitude?
Should the electric force and the strong force be equal for a nuclei to be stable? Because if perhaps, the strong force is now more than that of the electric force, then shouldn't the nucleus collapse ...
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