The intensity of magnetic induction at the centre of a current `-` carrying circular coil is `B_(1)` and at a point on its axis at a distance equal to its radius from the centre is `B_(2)` , then `B_(1)//B_(2)` is

The ratio of magnetic inductions at the centre of a circular coil of radius a and on its axis at a distance equal to its radius, will be-

The ratio of magnetic inductions at the centre of a circular coil of radius a and on its axis at a distance equal to its radius, will be-

The magnetic field at the centre of a circular current carrying coil of radius r is B^(e ) . The magnetic on its axis at a distance r from the centre is B_(a) . The value of B_(e) : B_(a) will be :

The magnetic induction at the centre of a current carrying circular coil of radius 10cm is 5sqrt(5) times the magnetic induction at a point on its axis. The distance of the point from the centre of the coil in m is

The magnetic field at the centre of a circular current carrying conductor of radius r is B_(c) . The magnetic field on its axis at a distance r from the centre is B_(a) . The value of B_(c):B_(a) will be

The magnetic induction at the centre of a current carrying circular coil of radius 10cm is 5sqrt(5) times the magnetic induction at a point on its axis. The distance of the point from the centre of the soild in cm is

The magnetic induction at the centre of a current carrying circular coil of radius 10cm is 5sqrt(5) times the magnetic induction at a point on its axis. The distance of the point from the centre of the coild in cm is

The intensity of the magnetic induction field at the centre of a single turn circular coil of radius 5 cm carrying current of 0.9 A.