Problem on finding maximum torque on a simple loop

  • Thread starter patlai
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  • #1
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The plane of a rectangular loop of wire with a width of W and a height of L is parallel to a magnetic field of magnitude B. The loop carries a current of I .

What is the maximum torque that can be obtained with the same total length of wire carrying the same current in this magnetic field?


*note i feel like ive tried everything and i can't seem to figure this problem out.
 

Answers and Replies

  • #2
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i know you have to do something with optimizing the area

i got this answer:

B*I*((l+h)/2)^2

but the website system says my answer is off by a multiplicative factor.
 
  • #3
Tide
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I think you would maximize the area by bending the wire into a circular shape.
 
  • #4
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how did you get that answer patlai?
 

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