Two straight parallel wires are separated by 6.1 c m . There is a 2.0- A current

Question

Two straight parallel wires are separated by 6.1cm . There is a 2.0-A current flowing in the first wire.
If the magnetic field strength is found to be zero between the two wires at a distance of 2.4cm  from the first wire, what is the magnitude of the current in the second wire?         
6.1cm . There is a 2.0-A current flowing in the first wire.
If the magnetic field strength is found to be zero between the two wires at a distance of 2.4cm  from the first wire, what is the magnitude of the current in the second wire?         

Explanation / Answer

straight wire is B =

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