tubular cross- section 9 - toroid An ideal toroid with inner radius b and outer radius e and carrying a current i has a nonuniform magnetic field forming circles inside it with a HNI 2.m where N is...

Extracted text: tubular cross- section 9 - toroid An ideal toroid with inner radius b and outer radius e and carrying a current i has a nonuniform magnetic field forming circles inside it with a HNI 2.m where N is the number of turns and - is the radius measured from its center (see Figure). What will be the total magnetic flux through a volume with a tubular magnitude cross- section shown in Figure? Note dA=2.rr dr . A) 4,NIc B) 4NI(c-b) O C) o O D) 4NIr O E) 4,NIb