An ideal toroid with inner radius and outer radius tubular cross- and carrying a current section I has a nonuniform magnetic field foming circles inside it with a magnitude H,NI 2 Tr where is the...

Extracted text: An ideal toroid with inner radius and outer radius tubular cross- and carrying a current section I has a nonuniform magnetic field foming circles inside it with a magnitude H,NI 2 Tr where is the number of tums and toroid is the radius measured from its center (see Figure). What will be the total magnetic flux through a volume with a tubular cross- section shown in Figure? Note dA=2 Tr dr - A) HN I (c-b) B) H,NIc C) - D) H,NIb E)