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

Equal currents i , i are flowing through two infinitely long parallel wires. What will be the magnetic field at a mid-way, when the currents are flowing in opposite directions?

If a current I is flowing in a straight wire parallel to X - axis and magnetic field is in Y - axis then the wire experiences

Infinite wires, each carrying a current 0.5 A, are kept parallel to y-axis and intersecting x-axis at x=+-1 m, +02 m , +-4 m , +-8m etc. Wires kept at positive values of x carry current in the same direction while wires kept at negative values of x carry current successively in opposite directions as shown in Fig. A wire is kept parallel to x-axis and intersecting y-axis at y=2 m. It carries a current i. Assuming this wire to be insulated from others then the current i in it such that magnetic induction at O is zero is (assuming each wire to be infinitely long)

Infinite wires, each carrying a current 0.5 A, are kept parallel to y-axis and intersecting x-axis at x=+-1 m, +02 m , +-4 m , +-8m etc. Wires kept at positive values of x carry current in the same direction while wires kept at negative values of x carry current successively in opposite directions as shown in Fig. A wire is kept parallel to x-axis and intersecting y-axis at y=2 m. It carries a current i. Assuming this wire to be insulated from others then the current i in it such that magnetic induction at O is zero is (assuming each wire to be infinitely long)

An infinite long straight wire with current I flowing along the positve z-axis is located at coordinates P(-12m, 5m) . Determine the unit vector showing the direction of magnetic field at the origin.

A current of I ampere is flowing through each of the bent wires as shown the magnitude and direction of magnetic field at O is

Two infinite long straight current carrying wires are placed parallel to y-axis in x-y plane. Each wire carries current I in opposite direction as shown. A charged particle of charge +q and mass m is projected from position P (0,0,a) with initial velocity vecv=vechatj . Then

Current I_1 and I_2 flow in the wires shown in Fig. The field is zero at distance x to the right of O. Then

Current I_1 and I_2 flow in the wires shown in Fig. The field is zero at distance x to the right of O. Then