A long wire bent as shown in fig. carries current I. If the radius of the semicircular portion is a, the magnetic field at centre C 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

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 center C 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 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 :

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 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