[" Find the magnetic field "B" at the centre of a rectangular loop of length "ell" and width "b" ,carnying a "],[" current i."]

Find the magnetic field B at the centre of a rectangular loop of length l and width b, carrying a current i.

Find the magnetic field B at the centre of a rectangular loop of length l and width b, carrying a current i.

Find the magnetic field B at the centre of a rectangular loop of length l and width b, carrying a current i.

Magnetic field at the centre of regular hexagon current carrying loop of side length l and current i is

Magnetic field at the centre of regular hexagon current carrying loop of side length l and current i is

The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre of the loop is B_(1) . When the dipole moment is doubled by keeping the current constant, the magnetic field at the centre of the loop is B_(2) . The ratio (B_(1))/(B_(2)) is:

The dipole moment of a circular loop carrying a current I, is m and the magnetic field at the centre of the loop is B_(1) . When the dipole moment is doubled by keeping the current constant, the magnetic field at the centre of the loop is B_(2) . The ratio (B_(1))/(B_(2)) is: