he magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.700 m and an outer radius of 1.30 m. The toroid has 800 turns of large-diameter wire, each of which carries a current of 12.0 kA.

Question

he magnetic coils of a tokamak fusion reactor are in the shape of a toroid having an inner radius of 0.700 m and an outer radius of 1.30 m. The toroid has 800 turns of large-diameter wire, each of which carries a current of 12.0 kA.
(a) Find the magnitude of the magnetic field inside the toroid along the inner radius.
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(b) Find the magnitude of the magnetic field inside the toroid along the outer radius.
  T

Elena · Accepted Answer

B₁= μ₀NI/2πr = 4π•10⁻⁷•800•12000/2π•0.7= … B₂= μ₀NI/2πR = 4π•10⁻⁷•800•12000/2π•1.3= …

Elena · Answer

http://hyperphysics.phy-astr.gsu.edu/hbase/magnetic/toroid.html