The accompanying figure shows a cross-section of a long, hollow, cylindrical conductor of inner radius r1=4 cm and outer radius r2=6.5 cm. A 35-A current distributed uniformly over the cross-section flows into the page. Calculate the magnetic field at r=2.5 cm, r=5.5 cm, and r=8 cm. Magnetic field at r=2.5 cm is_______T.  Magnetic field at r=5.5 cm is__________T.  Magnetic field at r=8 cm is____________T.

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The accompanying figure shows a cross-section of a long, hollow, cylindrical conductor of inner radius r1=4 cm and outer radius r2=6.5 cm. A 35-A current distributed uniformly over the cross-section flows into the page. Calculate the magnetic field at r=2.5 cm, r=5.5 cm, and r=8 cm.

  1. Magnetic field at r=2.5 cm is_______T. 
  2. Magnetic field at r=5.5 cm is__________T. 
  3. Magnetic field at r=8 cm is____________T. 
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