Atoroidal solenoid with mean radius r and cross-sectional area a is wound uniformly with n1 turns. a second toroidal solenoid with n2 turns is wound uniformly on top of the first, so that the two solenoids have the same cross-sectional area and mean radius. (a) what is the mutual inductance of the two solenoids? assume that the magnetic field of the first solenoid is uniform across the cross section of the two solenoids. (b) if n1 = 550 turns, n2 = 290 turns, r = 10.6 cm, and a = 0.760 cm2, what is the value of the mutual inductance?

Mutual inductance,

Explanation:

(a) A toroidal solenoid with mean radius r and cross-sectional area A is wound uniformly with N₁ turns. A second thyroidal solenoid with N₂ turns is wound uniformly on top of the first, so that the two solenoids have the same cross-sectional area and mean radius.

Mutual inductance is given by :

(b) It is given that,

Radius, r = 10.6 cm = 0.106 m

Area of toroid,

Mutual inductance,

or

So, the value of mutual inductance of the toroidal solenoid is . Hence, this is the required solution.

the skeletons of most mammals reach a certain size and then stop growing. however, many animals, including some mammals, keep growing throughout their lives. kangaroos, for example, just keep growing and growing until they die. also, the longer an animal lives the greater the chance it might catch some deadly disease.