*52. (II) A toroid is a solenoid in the shape of a circle
Chapter 20, Problem 52(choose chapter or problem)
*52. (II) A toroid is a solenoid in the shape of a circle (Fig. 20-62). Use Ampere's law along the circular path, shown dashed in Fig. 20-62a. to determine that the magnetic field (d) inside the toroid is B = fi0NI/2irR, where N is the total number of turns, and (b) outside the toroid is B = 0. (c) Is the field inside a toroid uniform like a solenoid's? If not, how does it vary?
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