Figure $3$ shows a circular loop carrying a current of $10$A flowing in a clockwise direction. The radius, $r_1,$ of the

wire is $20cm.$

a$)$ Calculate the magnetic field produced at p point.

Another circular wire having a radius $r_2=30cm$ is placed in such a way that the two wires form two concentric

circular wire loops located in a xy plane.

b$)$ Find out the magnetic dipole moment of the system.

c$)$ If the wires are kept in a magnetic field of $10jT,$ how much net torque and force will be produced on the

dipole moment?