Question

A toroid is a solenoid in the shape of a donut (Figure 1). Part A Constants Use Ampere's law along the circular paths, shown dashed in the figure, to determine the magnetic field inside the toroid, where N is the total number of turns. Express your answer in terms of the variables N, I, R, and the constants ? and ?0. B = Submit Request Answer Part B Determine the magnetic field outside the toroid. Express your answer in terms of the variables N, I, R, and the constants ? and ?0. B = Submit Request Answer (a) A toroid or torus. (b) A section of the toroid showing direction of the current for three loops: ? means current toward you, and ? means current away from you.

          A toroid is a solenoid in the shape of a donut (Figure 1).
Part A
Constants
Use Ampere's law along the circular paths, shown dashed in the figure, to determine the magnetic field inside the
toroid, where N is the total number of turns.
Express your answer in terms of the variables N, I, R, and the constants ? and ?0.
B =
Submit
Request Answer
Part B
Determine the magnetic field outside the toroid.
Express your answer in terms of the variables N, I, R, and the constants ? and ?0.
B =
Submit
Request Answer
(a) A toroid or torus.
(b) A section of the toroid showing direction of the
current for three loops: ? means current toward
you, and ? means current away from you.

A toroid is a solenoid in the shape of a donut (Figure 1).
Part A
Constants
Use Ampere's law along the circular paths, shown dashed in the figure, to determine the magnetic field inside the
toroid, where N is the total number of turns.
Express your answer in terms of the variables N, I, R, and the constants ? and ?0.
B =
Submit
Request Answer
Part B
Determine the magnetic field outside the toroid.
Express your answer in terms of the variables N, I, R, and the constants ? and ?0.
B =
Submit
Request Answer
(a) A toroid or torus.
(b) A section of the toroid showing direction of the
current for three loops: ? means current toward
you, and ? means current away from you.

Added by Manuel J.

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