Two long straight currents carrying wires having currents I and 2I lie along y-and z-axis, respectively, as shown in Fig. Find `vecB` at a point P(x,0).

Two thin long wires carry currents I_1 and I_2 along x- and y-axes, respectively, as shown in Fig. Consider the points only in x-y plane.

The location of three long wires carrying same current I are x=-a , x=0 and x=+ a respectively as shown in figure. The magnetic field at point ( 0 , 0 , a ) is

two infinite wires, carrying currents i_1 and i_2 ., are lying along x-and y-axes, as shown in the x-y plane. Then,

The field due to a long straight wire carrying a current I is proportional to

A long straight wire carrying current i=10A lies along y-axis. Find the magnetic field at P(3cm, 2cm,4cm).

Two infinite long wires, each carrying current I, are lying along x- and y-axis, respectively. A charged particle, having a charge q and mass m, is projected with a velocity u along the straight line OP. The path of the particle is (neglect gravity)