A star shaped loop ( with `l=` length of each section ) carries current i. Magnetic field at the centroid of the loop is

A square loop of side a carris a current I . The magnetic field at the centre of the loop is

A square loop of side a carris a current I . The magnetic field at the centre of the loop is

A square conducting loop of side length L carries a current I.The magnetic field at the centre of the loop is

A square conducting loop of side length L carries a current I.The magnetic field at the centre of the loop is

A square loop of edge 'a' carries a current l. The magnetic field at the centre of loop is

A square loop of wire of side a carries a current i . Calculate the magnetic field at the centre of the loop

A square conducting loop of side length L carries a current I.The magnetic field at the centre of the loop is (dependence on L)

A rectangular loop of metallic wire is of length a and breadth b and carries a current i. The magnetic field at the centre of the loop is

A rectangular loop of metallic wire is of length a and breadth b and carries a current i. The magnetic field at the centre of the loop is