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PLEASE SHOW ALL WORK! A long wire carries a current of I = 150 A. a)...

PLEASE SHOW ALL WORK!

A long wire carries a current of I = 150 A.

a) What is the magnetic field 18.0 cm away from the wire?

b) What is the magnetic field at that same point, if we place a second wire carrying the same current in the opposite direction 36.0 cm away from the first wire?
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