Equal currents `i=1` A are flowing through the wires parallel to y-axis located at `x=+1m, x=+2m,
Channel: Doubtnut
Date: 2020-08-02

Equal currents `i=1` A are flowing through the wires parallel to y-axis located at `x=+1m, x=+2m, x=+4m` and so on...., etc. but in opposite directions as shown in Fig The magnetic field (in tesla) at origin would be