Magnetic field of a current loop

  • Thread starter MahalMuh
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  • #1
MahalMuh
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Homework Statement:
Circular current loop with radius of R = 0.3 cm and current I = 1.4 A

Calculate the magnetic field B within the distances of a) x1 = 0.17 cm and b) x2 = 2.3 cm from the axis.
Relevant Equations:
B = (u0/2) * (IR^2) / (x^2 + R^2)^(3/2)
This should be pretty straightforward and my take gives B = 0.000193*T for a) and B = 0.00000063 T for b).

Or have I misunderstood something?
 

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  • #2
MahalMuh
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I’m not passing the grader with the above answer.
 
  • #3
MahalMuh
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It seems the B equation is for its x-directed component. To derive B just need the angle. Solved.
 
  • #4
rude man
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[Calculate the magnetic field B within the distances of a) x1 = 0.17 cm and b) x2 = 2.3 cm from the axis.
"From the axis"? Should be "from the coil plane"? Or a diametric axis?
"The axis" is usually understood to be the coil's major axis.
 

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