Two identical circular wires of radius 20 cm and carrying current `sqrt2A` are placed in perpendicular planes as shown in figure. The net magnetic field at the centre of the circular wires is______`times 10^(-8)`

(Take `pi = 3.14`)

A part of a long wire carrying a current i is bent into a circle of radius r as shown in figure. The net magnetic field at the centre O of the circular loop is

A current carrying wire AB of the length L is turned along a circle, as shown in figure. The magnetic field at the centre O.

A conducting wire carrying a current I is bent into the shape as shown. The net magnetic field at the centre O of the circular arc of radius R

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

The wire loop shown in figure carries a current as shown. The magnetic field at the centre O is ,

Two identical circular wires P and Q each of radius R and carrying current 'I' are kept in perpendicular planes such that they have a common centre as shown in the figure. Find the magnitude and direction of the net magnetic field at the common centre of the two coils.

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

The figure shows a semi-circular wire of radius 10 cm in the xy plane carrying current 2 A. If the magnetic field in the region is 3.0 T(-k) then the magnetic force on the wire will be

A conducting circular loop of radius a is connected to two long, straight wires . The straight wires carry a current I as shown in figure . Find the magnetic field B at the centre of the loop.