The Mystery of the Unchanging Magnetic Force on a Circular Loop

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Homework Help Overview

The discussion revolves around a magnetostatic problem involving the force exerted by an infinite current-carrying line on a circular loop. The original poster presents a solution that appears trivial, as it does not depend on certain parameters, raising questions about its validity.

Discussion Character

  • Exploratory, Assumption checking

Approaches and Questions Raised

  • The original poster seeks to identify the mistake in their solution to enhance their understanding. Some participants question the correctness of the original poster's approach, while others reference an authoritative source that provides a different answer.

Discussion Status

The discussion is ongoing, with the original poster expressing a desire to learn from their errors. There is acknowledgment of differing views on the solution's correctness, but no consensus has been reached regarding the specific mistake.

Contextual Notes

Participants note that the original poster's inquiry may be considered a homework question, which could influence the nature of the responses and guidance provided.

desmal
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Hi all

I tried to solve one of the magnetostatic problems and I end up with a trivial solution. The problem as shown in the figure, we have an infinite current carrying line and a circle with a radius "b" and current I2. The problem asks for the force being exerted by the line on the circular loop. My answer as it’s shown doesn't depend on "d" neither "b" which makes no sense.
http://www.pc4up.com/2009/5-2009/Jkc70408.jpg

Can you debug my solution?
 
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This is problem 10 on page 321 of Smythe "Static and Dynamic Electricity" (3rd Edition). Smythe has the answer. Yours is not correct.
 
Yes my solution was not correct I knew, I am asking what is the mistake in my solution so that I can get benefit of my mistakes. Is there any wrong with that!
 
Sorry I just read the massage from the forum, I didn't thought that this is considered to be a homework question.

Sorry all...
 

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