A magnetic field of 5xx10^(-5) T is prod...

A magnetic field of `5xx10^(-5)` T is produced at a perpendicular distance of `0.2` m from a long straight wire carrying electric current. If the permeability of free space is `4 pi xx 10^(-7)T m//A,` the current passing through the wire in A is

0.2 A

0 A

4 A

40 A

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