Magnetic field due to currentMedium
Question
Two parallel, long wires carry currents i1 and i2 with i1 > i2. When the currents are in the same direction, the magnetic field at a point midway between the wires is 10μT. If the direction of i2 is reversed, the field becomes 30μT. The ratio i1/i2 is :-
Options
A.4
B.3
C.2
D.1
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