Two semicircles shown in Fig. have radii a and b. Calculate the net magnetic field (magnitude and direction) that the current in the wires produces at point P.

What is the net magnetic field at point O for the current distribution shown here?

What is the net magnetic field at point O for the current distribution shown here? ,

What is the net magnetic field at point O for the current distribution shown here?

A wire is bent forming two semicircles as shown in the figure. Calculate the magnitude of magnetic intensity at the centre.

Find the magnitude and direction of magnetic field at point P due to the current carrying wire as shown in

Find the magnitude and direction of magnetic field at point P due to the current carrying wire as shown in

A long, circular pipe, with an outside radius R, carries a (uniformly distributed) current i_0 (into the paper as shown in Fig.) A wire runs parallel to the pipe at a distance 3R from centre to centre. Calculate the magnitude and direction of the current in the wire that would cause the resultant magnetic field at point P to have the same magnitude, but the opposite direction, as the resultant field at the centre of the pipe.

A long, circular pipe, with an outside radius R, carries a (uniformly distributed) current i_0 (into the paper as shown in Fig.) A wire runs parallel to the pipe at a distance 3R from centre to centre. Calculate the magnitude and direction of the current in the wire that would cause the resultant magnetic field at point P to have the same magnitude, but the opposite direction, as the resultant field at the centre of the pipe.

Two small circular loops, marked (1) and (2), carrying equal currents are placed with the geometrical axes perpendicular to each other as shown in figure. Find the magnitude and direction of the net magnetic field produced at the point O.