Q- A circular torus has inner radius R_{1} = 30 cm, outer radius R_{2} = 50 cm, and N = 710 turns wound uniformly around it. The current in the windings is I = 3 A.

(a) Calculate the magnitude of the magnetic field *B,* inside the torus, in the symmetrical plane along the inner and outer diameter, at the following distances from the axis of symmetry: *r*_{1} = 35 cm, and *r*_{2} = 40 cm.

(b) Calculate the magnitude of the magnetic field *B,* outside the torus, in the symmetrical plane along the inner and outer diameter, at the following distances from the axis of symmetry: *r _{3}* = 0 and

*r*= 60 cm.

_{4}
## Comments

IriamAbhigyan Martin Ninama