Electromagnetism from solonid within magnetic field -- reasoning....

AI Thread Summary
When a solenoid carrying current is placed within a magnetic field, it experiences a rotational force due to the interaction between the magnetic field and the electric current. This phenomenon is explained by the Lorentz force, which describes how charged particles move in magnetic fields. The difference in magnetic field strength creates a torque that causes the solenoid to rotate. Understanding this interaction is crucial for applications in electromagnetism and motor design. The discussion highlights the importance of the Lorentz force in explaining the behavior of solenoids in magnetic fields.
Evenus1
Messages
29
Reaction score
2
hi
i was wonder as to why when an solonid is placed with a current within and magnet there's a an rotational force. why is it that he difrence in strength of magnetic field created results in an rotation
many thanks
Ewen
 
Physics news on Phys.org
Have you heard of the Lorentz force ? Nice show here, explained https://www.boundless.com/physics/textbooks/boundless-physics-textbook/magnetism-21/magnetic-fields-magnetic-forces-and-conductors-159/torque-on-a-current-loop-rectangular-and-general-561-6351/
 
Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

Thread 'Motional EMF in Faraday disc, co-rotating magnet axial mean flux'

So here is the motional EMF formula. Now I understand the standard Faraday paradox that an axis symmetric field source (like a speaker motor ring magnet) has a magnetic field that is frame invariant under rotation around axis of symmetry. The field is static whether you rotate the magnet or not. So far so good. What puzzles me is this , there is a term average magnetic flux or "azimuthal mean" , this term describes the average magnetic field through the area swept by the rotating Faraday...
View full post »

Similar threads

I Charge movement relative to magnetic field frame dependence/invariance
Replies
5
Views
855
I How induction works within a coil (nuances of it)
Replies
6
Views
2K
I Is This Correct Description of Magnetic Saturation?
Replies
14
Views
2K
B Experiment issues (electromagnetism)
Replies
42
Views
2K
I Relation between electric & magnetic fields in terms of field strength
Replies
41
Views
6K
I Does displacement current create a magnetic field? And Lorentz force?
Replies
10
Views
2K
I Hall effect -- is it always applicable?
Replies
7
Views
2K
I Railgun: Significant magnetic field where projectile is?
Replies
8
Views
1K
B What is the difference between B and H?
Replies
14
Views
2K
I Homopolar generator question: Magnetic “wake”
Replies
7
Views
3K

Hot Threads

Recent Insights

Back
Top