For the arrangement shown in Fig. determine the magnetic field at centre O.

In Fig. Find the magnetic field at common centre.

In Fig. Find the magnetic field at common centre.

In the net work shown in figure,find the magnetic field at the centre O of the coil.

For the arrangment as shown in the figure, the magnetic induction at the centre is

In the given loop the magnetic field at the centre O is

The magnetic induction at centre O Fig.

The magnetic induction at centre O Fig.

The resistances of three parts of a circular loop are as shown in Fig. The magnetic field at the centre O is (current enters at A and leaves at B and C as shown)

The resistances of three parts of a circular loop are as shown in Fig. The magnetic field at the centre O is (current enters at A and leaves at B and C as shown)