An infinitely long conductor is bent into a circle as shown in figure. It carries a current I ampere and the radius of loop is R metre. The magnetic induction at the centre of loop is

An infinitely long straight conductor is bent into the shape as shown in figure. It carries the current I and radius of the circular loop is a, then the magnetic field at the centre of the loop is ______

An infinitely long straight conduction is bent into the shape as shown in the figure . It carries a current of I ampere and the radius of the circular loop is r metre. Then the magnetic induction at its centre will be

An infinite straight current carrying conductor is bent into a circle as shown in the figure . If the radius of the circle is R , the magnetic field at the centre of the coil is :

A long wire bent as shown in the figure carries current I=10A . If the radius of the semicircular portion is 1 m, the magnetic induction ("in "muT) at the centre C is

An infinite current carrying conductor is bent into three segment (1), (2) and (3) as shown in Fig. If it carries a current i, find the magnetic induction at the origin.