Basic magnetism on square loop question?

AI Thread Summary
A square loop carrying a current generates a magnetic field that affects each side of the loop. The forces on the sides arise from the interaction between the current and the magnetic field it produces. The torque experienced by the loop can be determined by analyzing these forces and their distances from the center of the loop. The Biot-Savart law can be applied, but it requires careful consideration of the distance R when calculating the magnetic field at each point. Integration over the loop is necessary to accurately account for the contributions from each segment of the loop.
helpmeplz!
Messages
27
Reaction score
1
A square loop carrying a current I creates its own magnetic field. Describe the forces on each side of the square loop due to its own field. What is the torque it experiences?

My question is this. I know we can use bio savart. But for bio savart, B=uoI/2piR, what R do I use? suppose i have a square loop, the adjacent sides do create B fields that the other experiences, but if they are two consecutive sides, their distance apart is 0? Please someone help me out!
 
Physics news on Phys.org
You have to integrate over the lines, using the distance between the point where you want to calculate the field and the point where your integral "is".
 
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 »

Thread 'Why measure the speed of light in one direction?'

It may be shown from the equations of electromagnetism, by James Clerk Maxwell in the 1860’s, that the speed of light in the vacuum of free space is related to electric permittivity (ϵ) and magnetic permeability (μ) by the equation: c=1/√( μ ϵ ) . This value is a constant for the vacuum of free space and is independent of the motion of the observer. It was this fact, in part, that led Albert Einstein to Special Relativity.
View full post »

Similar threads

I Work Done in Changing Shape of Current Carrying Loop
Replies
5
Views
2K
I When is Ampere's Law applicable in different scenarios?
Replies
3
Views
1K
I Magnetic dipole and a torque
Replies
1
Views
621
I Calculating Magnetic field strength of a magnet
4
Replies
198
Views
14K
I Charge movement relative to magnetic field frame dependence/invariance
Replies
5
Views
861
I Questions about cancelation of induced EMF and minimizing eddy currents
Replies
4
Views
2K
Finding the magnetic field at center of a square loop
Replies
3
Views
8K
Magnetic Field of Current loop around the Core
Replies
3
Views
1K
Magnetic field on a loop due to another loop
Replies
2
Views
16K
Magnetic flux is the same if we apply the Biot Savart?
2
Replies
57
Views
10K

Hot Threads

Recent Insights

Back
Top