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# Magnetic field

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A small/thin circular conducting disk that can carry total current, as represented by 'I'. The current path is circular at every distance from the center of the disk, and the each circle center is the disk center. Find the magnetic field at the disk center, assuming the current density is:

1. Constant

2. Inversely proportional to the distance from the center.

https://brainmass.com/physics/electric-magnetic-fields/magnatic-field-disk-center-466934

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A small/thin circular conducting disk that can carry total current 'I'. The current path is circular at every distance from the center of the disk, and the each circle center is the disk center. Find the magnetic field at the disk center, assuming the current densit y is:

1. Constant
2. inversely proportional to the distance from the center.

Solution: