Figure shows a current loop having two circular arcs joined by two lines. Find the magnitude field `B` at the centre `O`.

Figure shows a current loop having two circular arcs joined by two radial lines. Find the magnetic field B at the centre O.

Figure shows a current loop having two circular arcs joined by two radial lines. Find the magnetic field B at the centre O.

Figure shows a current loop having two circular arcs joined by two radial lines. Find the magnetic field B at the centre O.

Figure shows a current loop having two circular arcs joined by two radial lines. Find the magnetic field B at the centre O.

A current loop, having two circular arcs jo ined by two radial lines is shown in the figure. It carries a current of 10 A. The magnetic field at point O will be close to :

A current loop, having two circular arcs jo ined by two radial lines is shown in the figure. It carries a current of 10 A. The magnetic field at point O will be close to :