conductors

Did you mean the location of point of zero Magnetic field.

The magnetic field at a distance x from a conductor carrying current I is given by,

B α I/x

Hence, to for the two magnetic fields from two conductors to cancel each other,

6/x = 2/(0.05 - x)

0.15 - 3x = x

x = 0.0375 m.

Hence at a distance of 3.75 cm from conductor A.

Regards,

Team,

TopperLearning.