Question: Question B A hollow cylindrical wire carries a current I in the negative z direction (into the page). The current is uniformly distributed. 1.What is

Question B

A hollow cylindrical wire carries a current I in the negative z direction (into the page). The current is uniformly distributed.

1.What is the current density (i.e., current per unit area of the wire)?

2.What is the magnetic field at the center (Q) of the cylindrical bore? (Tip: superposition principle)X + + y X X X R Q X X +

X + + y X X X R Q X X + RX + X x

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