Magnet's feild strength decrease when it interacts with an object?

In summary, the conversation discusses whether a magnet's field strength decreases when it interacts with an object. The consensus is that the strength of the magnetic field will be affected if the object has its own magnetic field or if it is composed of a magnetic shielding material, according to the principle of superposition. Otherwise, the strength of the magnetic field will remain unchanged.
  • #1
GiTS
135
0
Does a magnet's field strength decrease when it interactes with an object? Say I had a magnet and It pulled on a metal bar with 1 Newton of force then i put another bar by it. would it continue to pull on the first bar with 1 Newton of force?
 
Physics news on Phys.org
  • #2
No, it doesn't.
 
  • #3
Actually I think it affects its magnetic lines so there is probably going to be a slight change. That would be because the second metal bar will effect the "shape" of the magnetic field and not because it's energy is allocated in two metal bars if that is what you had in mind.
 
  • #4
Yes it would by the principle of superposition.
 
  • #5
so which is it?
 
  • #6
If the other object has a magnetic field, then yes the strength of the magnetic field will be affected in accordance with the principle of superposition as tavi_boada states. Otherwise, no, the magnetic field strength would be unaffected. Or of course is the object is composed of a magnetic shielding material.
 
Last edited:

Related to Magnet's feild strength decrease when it interacts with an object?

1. How does the presence of an object affect the magnetic field strength of a magnet?

The presence of an object near a magnet can cause the magnetic field strength to decrease. This is because the object can act as a shield, redirecting the magnetic field lines and reducing their intensity.

2. Does the size or material of an object impact the decrease in magnetic field strength?

Yes, the size and material of an object can impact the decrease in magnetic field strength. Larger objects or objects made of materials with high magnetic permeability, such as iron, will have a greater effect on the magnetic field than smaller or less magnetic materials.

3. Is there a specific distance at which the magnetic field strength begins to decrease?

The magnetic field strength will begin to decrease as soon as the object is within the magnet's field. However, the strength decrease may become more significant as the object gets closer to the magnet.

4. Can the decrease in magnetic field strength be reversed?

Yes, the decrease in magnetic field strength can be reversed by removing the object from the magnet's field. The magnetic field lines will return to their original configuration and the strength will increase again.

5. How does the orientation of the object impact the decrease in magnetic field strength?

The orientation of the object can impact the decrease in magnetic field strength. If the object is parallel to the magnet's field, it will have a greater effect on the strength compared to if it is perpendicular to the field.

Similar threads

I Question about Activating Solenoids that are facing each other
    • Electromagnetism
Replies
1
Views
137
I Average Magnetic Field Between 2 Conducting Rods
    • Electromagnetism
Replies
1
Views
713
B Magnetic fields attracting two disc-shaped magnets
    • Electromagnetism
Replies
11
Views
1K
I Relation between electric & magnetic fields in terms of field strength
    • Electromagnetism
2
Replies
41
Views
3K
I Effect of Fringe Fields for a Bending (Dipole) Magnet on Field Integral?
    • Electromagnetism
Replies
0
Views
172
I Magnetic field strength of a stack of magnets
    • Electromagnetism
Replies
7
Views
2K
B Measuring electric field vs magnetic field
    • Electromagnetism
Replies
8
Views
928
Deflection of magnetic dipoles by a magnetic field
    • Electromagnetism
Replies
2
Views
753
Conservation of Energy on Current-Carrying Wire in Magnetic Field
    • Electromagnetism
Replies
2
Views
857
B Calculating Force on an Iron Object with Magnetic Field
    • Electromagnetism
Replies
21
Views
2K

Hot Threads

Recent Insights

Back
Top