Two parallel long straight wires are placed at a distance 6 cm apart as shown in figure. If they car

Question

Two parallel long straight wires are placed at a distance 6 cm apart as shown in figure. If they carry currents 3A and 6A respectively in the same direction, they will produce zero magnetic field\

Professor PC Thomas Classes · Answer

$\mathrm{M}=\mathrm{IA}$\ At P\ $\mathrm{B}_{1}=\mathrm{B}_{2}$\ $\frac{\mu_{0} 	imes 3}{2 \pi \mathrm{x}}=\frac{\mu_{0} 	imes 6}{2 \pi(6-\mathrm{x})}$\ $\mathrm{x}=2 \mathrm{~cm}$\