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Manipal MET2020PhysicsMagnetic Effects of Current

The formula for magnetic field of a certain component is given by B= ₀ N i 2 r where, N= total number of turns i= current through it r= radius. The component is

Options

  1. Aring
  2. Bsolenoid
  3. Ctoroid
  4. DNone of these

Correct answer

C. toroid

Step-by-step solution

Magnetic field at the centre of a toroid is given by B= ₀ N i 2 r where, n= N 2 r = number of turns per unit length of the toroid.

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