Two infinitely long wires each carrying current I along the same direction are made into the geometry as shown in the figure. The magnetic field at the point P is

Two long wires are placed parallel to each other 10cm apart as shown in figure. The magnetic field at point P is

Two perpendicular infinite wires are carrying current i as shown in the figure. The magnetic field at point P is :

A long wire carrying current 'I' is bent into the shape as shown in the figure. The net magnetic field intensity at the centre 'O' is

A conducting wire carrying current I is shown in the figure. The magnitude of magnetic field at the point P will be

A coil having N turns carry a current I as shown in the figure. The magnetic field intensity at point P is

Three infinitely long thin wires, each carrying current i in the same direction, are in the x-y plane of a gravity free space . The central wire is along the y - axis while the other two are along x = +-d . (i) Find the locus of the points for which the magnetic field B is zero. (ii) If the central wire is displaced along the Z- direction by a small amount and released, show that it will excecute simple harmonic motion . If the linear density of the wires is lambda , find the frequency of oscillation.

The straight wire AB carries a current I . The ends of the wire subtend angles theta_1 and theta_2 at the point P as shown in figure. The magnetic field at the point P is

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