Magnetic field could only affect moving charges?

AI Thread Summary
The discussion centers on the effects of magnetic fields on moving charges, specifically highlighting that a current-carrying wire experiences force due to the Biot-Savart law. It notes that a current-carrying loop in a magnetic field can experience torque, described by the equation τ = M*B, emphasizing that movement of charge is essential in both scenarios. The conversation also touches on the complexity of magnets, explaining that while electrons typically orbit randomly, in permanent ferromagnets, they align in the same direction. This alignment leads to the magnetic force experienced, which is fundamentally due to the movement of electrons, despite the apparent stability of atoms. Overall, the interaction between moving charges and magnetic fields is a key aspect of magnetism.
yuenkf
Messages
10
Reaction score
0
no other thing is under effect of B ? srry .i m not good in eng , hope u seniors can understd my q. thanks lot..
 
Physics news on Phys.org
A current carrying wire can experience a force given by Biot-Savart law.
A current carrying loop under magnetic field can experience torque which comes under magnetic moment.
$$\tau = M*B$$
But even then in both cases there is a movement of charge(current).
 
Yes.
Incase youre wondering, what we normally consider a "magnet" is a little complicated
Normally electrons orbit around the nucleus in random configurations, while a permanent ferromagnet has electrons all orbitting around the same axis.
Essentially the force we normally experience as magnetism is the interaction between the electrons, that are moving(even though the atoms appear stationary)
 
Last edited:
hmm.. thanks for ur replies... appreciate it much...
 

Thread 'Reflections at the source point of a transmission line'

I was using the Smith chart to determine the input impedance of a transmission line that has a reflection from the load. One can do this if one knows the characteristic impedance Zo, the degree of mismatch of the load ZL and the length of the transmission line in wavelengths. However, my question is: Consider the input impedance of a wave which appears back at the source after reflection from the load and has traveled for some fraction of a wavelength. The impedance of this wave as it...
View full post »

Similar threads

I Charge movement relative to magnetic field frame dependence/invariance
Replies
5
Views
933
B A moving magnet in a linear electric field
Replies
8
Views
2K
I Magnetic field as result of length contraction
Replies
20
Views
4K
I Hall effect -- is it always applicable?
Replies
7
Views
2K
B Force Exerted on a Conductor by a Homogeneous Magnetic Field
Replies
1
Views
1K
I Behaviour of Magnetic Fields Underwater
Replies
2
Views
3K
I Motional EMF in Faraday disc, co-rotating magnet axial mean flux
Replies
5
Views
169
B Measuring electric field vs magnetic field
Replies
8
Views
2K
Magnetic Field of a Moving Charge and the Displacement Current
Replies
26
Views
12K
Current and stationary charges
Replies
8
Views
2K

Hot Threads

Recent Insights

Back
Top