Magnetic Field at Center of Loop

Click For Summary

Homework Help Overview

The discussion revolves around determining the strength of the magnetic field at the center of a loop, with a specific focus on the implications of the loop's shape and configuration. The original poster references a formula for calculating the magnetic field, but questions its applicability to the given problem context.

Discussion Character

  • Exploratory, Assumption checking, Conceptual clarification

Approaches and Questions Raised

  • Participants explore the nature of the loop and its configuration, questioning whether the standard formula for a circular loop applies. There are discussions about the differences in shape and the presence of additional elements, such as a straight wire, which may affect the magnetic field calculation.

Discussion Status

The conversation is ongoing, with participants providing insights into the complexity of the problem. Some suggest using the principle of superposition to account for the contributions of both the loop and the straight wire to the magnetic field. There is no explicit consensus yet, but the dialogue is productive in exploring different interpretations of the setup.

Contextual Notes

Participants note that the configuration includes a loop and a straight wire, which may complicate the application of the standard magnetic field formula. The original poster expresses uncertainty about the formula's relevance given the specific setup of the problem.

tomizzo
Messages
113
Reaction score
2

Homework Statement



What is the strength of the magnetic field at the center of the loop in the figure?

See attachment

Homework Equations



B = Mu_0*I/(2*R)

The Attempt at a Solution



I plug in the information to this equation and get .00038 Tesla which is incorrect. Does the magnetic field due to a loop equation I listed above not apply to this problem?
 

Attachments

  • Capture.PNG
    Capture.PNG
    4.1 KB · Views: 671
Physics news on Phys.org
The loop is fine, but the cable is not just a simple loop...
 
mfb said:
The loop is fine, but the cable is not just a simple loop...

What is special about it?
 
Do you see the difference between the shape of the cable and a circle?
 
mfb said:
Do you see the difference between the shape of the cable and a circle?

There is some over lap. I thought it still fitted the formula above due to the fact that it is a coil with a single turn.
 
I spy with my little eye: a loop and a straight wire carrying a current!
 
BvU said:
I spy with my little eye: a loop and a straight wire carrying a current!

Using superposition, you will simply added the magnetic field due to the straight wire to the magnetic field due to the loop. Thank you!
 
Bravo! and: you're welcome.
 

Similar threads

Replies
2
Views
1K
Replies
10
Views
2K
Replies
4
Views
1K
  • · Replies 6 ·
Replies
6
Views
1K
  • · Replies 37 ·
2
Replies
37
Views
5K
Replies
1
Views
2K
Replies
2
Views
1K
Replies
7
Views
2K
  • · Replies 1 ·
Replies
1
Views
1K
Replies
5
Views
2K