Two long parallel wires, AB and CD, carry equal currents in opposite directions. They lie in the x-y plane, parallel to the x-axis, and pass through the points (0,-a,0) and (0,a,0) respectively, Figure. The resultant magnetic field is:

Two very long straight parallel wires, parallel to y-axis, carry currents 41 and I, along+y direction and-y direaction respectively. The wires are passes through the x-axis at the points (d, 0,0) and (d, 0,0) respectively. The graph of magnetic field z-component as one moves along the x-axis from x = - d to x = +d , is best given by

Two very long straight parallel wires, parallel to y-axis, carry currents 41 and I, along+y direction and-y direaction respectively. The wires are passes through the x-axis at the points (d, 0,0) and (-d, 0,0) respectively. The graph of magnetic field z-component as one moves along the x-axis from x = - d to x = +d , is best given by

Two long thin, parallel conductors carrying equal currents in the same direction are fixed parallel to the x-axis, one passing through y = a and the other through y=-a . The resultant magnetic field due to the two conductors at any point is B. Which of the following are correct?

Two long thin, parallel conductors carrying equal currents in the same direction are fixed parallel to the x-axis, one passing through y = a and the other through y=-a . The resultant magnetic field due to the two conductors at any point is B. Which of the following are correct?

Two infinitely long parallel wires carry equal current in same direction. The magnetic field at a mid point in between the two wires is

In fig. two long parallel wires carry equal currents in opposite directions. Point O is situated midway between the wires and X-Y plane contains the two wires and the position Z -axis comes normally out of the plane of paper. The magnetic field B at O is non-zero along

In fig. two long parallel wires carry equal currents in opposite directions. Point O is situated midway between the wires and X-Y plane contains the two wires and the position Z -axis comes normally out of the plane of paper. The magnetic field B at O is non-zero along

Two parallel wire carrying equal currents in opposite directions are placed at x=+-a parralel to y-axis with z=0 . Magnetic field at origin O is B_1 and at P(2a,0,0) is B_2 . Then, the ratio B_1//B_2 is