A toroid having 200 turns carries a current of 1 A. The average radius of the toroid

A toroid having 200 turns caries a current of 1 A. The average radius of the toroid is 10 cm. The magnetic field at any point in the open space inside the toroid is

Options

(a) 4×10⁻³ T
(b) zero
(c) 0.5×10⁻³ T
(d) 3×10⁻³ T

Correct Answer:

zero

Explanation:

Magnetic field at any point in the open space inside the toroid is zero, because the amperean loop enclose net current equal zero.

admin:

Related Questions

  1. The photoelectric threshold wevelength for potassium (work function being 2 eV) is
  2. Two particles are oscillating along the same line with the same frequency
  3. Activity of a radioactive sample decreases to (1/3)rd of its original value
  4. Which wavelengths of sun is used finally as electric energy?
  5. An automobile moves on a road with a speed of 54 km h⁻¹. The radius of its wheels