Shielding Wire: Reduce Field at Point 30mm Away

  • Thread starter Thread starter maxwel
  • Start date Start date
  • Tags Tags
    Shielding Wire
AI Thread Summary
To reduce the field at a point 30mm away from a 10m long copper wire carrying DC current, clarification is needed on whether the focus is on the electric (E) field or the magnetic (B) field. The discussion indicates that if the E field is the concern, the question lacks proper formulation due to the return conductor being at infinity. For the B field, it is established that a copper tube will have no effect on a static magnetic field. Therefore, the proposed shielding method using a copper tube will not achieve the desired reduction in field strength. Understanding the type of field in question is crucial for addressing the issue effectively.
maxwel
Messages
1
Reaction score
0
Hi,
how can we reduce field at a point(of observation) 30mm from a 10 m long blank copper wire with return path somewhere at infinity carrying DC current by using a 1m long copper tube 1mm wall thickness and 30mm outer diameter?
 
Physics news on Phys.org
Which field?

If you are talking about the E field, then the question is not well formulated since the return conductor is at infinity.
w
If you are talking about B-field, then you can't. Copper will absolutely no effect on a static B field.
 
Thread 'Question about pressure of a liquid'

Thread 'Question about pressure of a liquid'

I am looking at pressure in liquids and I am testing my idea. The vertical tube is 100m, the contraption is filled with water. The vertical tube is very thin(maybe 1mm^2 cross section). The area of the base is ~100m^2. Will he top half be launched in the air if suddenly it cracked?- assuming its light enough. I want to test my idea that if I had a thin long ruber tube that I lifted up, then the pressure at "red lines" will be high and that the $force = pressure * area$ would be massive...
View full post »

Thread 'Why is the 3 body problem unsolvable? And what will happen if someone solves it?'

I feel it should be solvable we just need to find a perfect pattern, and there will be a general pattern since the forces acting are based on a single function, so..... you can't actually say it is unsolvable right? Cause imaging 3 bodies actually existed somwhere in this universe then nature isn't gonna wait till we predict it! And yea I have checked in many places that tiny changes cause large changes so it becomes chaos........ but still I just can't accept that it is impossible to solve...
View full post »

Similar threads

I Shielding behavior of a steel cuboid in a DC magnetic field
Replies
1
Views
282
B Do the fields extend to infinity in a solenoid and for a wire?
Replies
15
Views
3K
Wall thickness of ring habitats for radiation shielding
Replies
4
Views
3K
B field around a wire, single wire electromagnet
Replies
2
Views
2K
Insulated copper wire turned into gray powder
2
Replies
72
Views
19K
Verify Magnetic Induction Homework: 50A Copper Wire 0.5*10-2m
Replies
5
Views
2K
Shield Magnetic Field: Best Material & Thickness for 10A Current
Replies
15
Views
6K
I Field outside of a straight wire
Replies
12
Views
3K
Magnetic field created by a current carrying wire
Replies
15
Views
3K
Magnetic field inside a solenoid
Replies
10
Views
2K

Hot Threads

Recent Insights

Back
Top