Magnetic Field at Center of Loop

  • Thread starter tomizzo
  • Start date
  • #1
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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?
 

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Answers and Replies

  • #2
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The loop is fine, but the cable is not just a simple loop...
 
  • #3
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The loop is fine, but the cable is not just a simple loop...
What is special about it?
 
  • #4
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Do you see the difference between the shape of the cable and a circle?
 
  • #5
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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.
 
  • #6
BvU
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I spy with my little eye: a loop and a straight wire carrying a current!
 
  • #7
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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!
 
  • #8
BvU
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Bravo! and: you're welcome.
 

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