Two parallel conductors are carrying currents in the opposite direction. The currents are non-zero and not necessarily equal. The magnitude of the magnetic field midway between them is 40 ?T. If one of the currents then has its direction reversed, what is the resulting magnitude of the magnetic field midway between them?
a. a value greater than 40 ?T
b. 40 ?T
c. a value less than 40 ?T
d. It could be any value.
c
Physics & Space Science
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