Two infinitely long parallel wires carry currents of magnitude I1 and I2 and are at a distance 4 cm apart. The magnitude of the net magnetic field is found to reach a non-zero minimum values between the two wires and 1 cm away from the first wire. The ratio of the two currents and their mutual direction is - VgyanHub

Question:

Two infinitely long parallel wires carry currents of magnitude I1 and I2 and are at a distance 4 cm apart. The magnitude of the net magnetic field is found to reach a non-zero minimum values between the two wires and 1 cm away from the first wire. The ratio of the two currents and their mutual direction is

Options :

(a) I2/I1=9, anti-parallel
(b) I2/I1=9, parallel
(c) I2/I1=3, anti-parallel
(c) I2/I1=3, parallel

Answer :

(b) I2/I1=9, parallel

Answer Steps :

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