400 mA of electrical current flows through a 4 mm radius copper wire extending along the...

400 mA of electrical current flows through a 4 mm radius copper wire extending along the z axis. If the current is homogeneous, find:
a) The volumetric density of current.
b) The radius of the cross section through which 200 mA of electric current flows.
c) The electric current flowing through a cross section of 2 mm radius.

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genius_generous answered 1 year ago

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